### We found 5,653 reviewed resources for using formulas

Videos (Over 2 Million Educational Videos Available)

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Other Resource Types ( 5,653 )

Lesson Planet

#### Know and Use the Formulas for Area and Circumference of a Circle (7.G.B.4)

Practice with the formulas for circumference and area of a circle. Videos each work with a specific area and the last video challenges them to work backwards when given the area.

Lesson Planet

#### Use Nets to Represent Three-Dimensional Figures and Find Surface Area (6.G.A.4)

The nine resources in this collection model how to explore surface area with different shapes and how to use nets to help visualize these shapes. The last two videos in the series are application-based and test the skills developed by...

Lesson Planet

#### Math Antics Geometry Video Lessons

The point of this collection of 12 videos is to introduce learners to three basic parts of geometry—points, lines, and planes. The presenter provides definitions, shows how to classify shapes, provides examples, and shows how to use...

Lesson Planet

#### Chemistry Lessons

A collection of 26 videos provides young chemists with help with concepts and topics that many find confusing. The narrator offers clear explanations, practical advice, and uses multiple examples to ensure understanding. Great for ...

EngageNY

#### EngageNY Geometry Module 4: Connecting Algebra and Geometry Through Coordinates

Teach young mathematicians how to use coordinate geometry to program a robot that is bound in the room in which it sits . Help comes in the form of the 15 lessons in the Module 4: Connecting Algebra and Geometry through Coordinates...

EngageNY

#### EngageNY Algebra II Module 1: Polynomial, Rational, and Radical Relationships

The 42 lessons in the Algebra II Module 1 collection are divided into four topics: Polynomials--From Base Ten to Base X, Factoring-- Its Use and Its Obstacles, Solving and Applying Equations—Polynomial, Rational and Radical, and A...

Lesson Planet

#### EngageNY Precalculus and Advanced Topics Module 3: Rational and Exponential Functions

In Module 3, precalculus students review the fundamental theorem of algebra, and then find roots of polynomials and roots of unity using polynomial identities, the binomial theorem, and Pascal’s Triangle. As part of their study of...

Lesson Planet

#### Common Core Math: 3rd Grade

Looking for all things third grade Common Core math? Here is the collection you've been waiting for! Third grade math curriculum is rigorous and opens up the doors to bigger algebra concepts that learners will use their entire lives....

EngageNY

#### EngageNY Algebra I Module 3: Linear and Exponential Functions

The Algebra 1, Module 3 collection focuses on linear and exponential functions. The module's 26 lessons are divided into four topics: Linear and Exponential Sequences, Functions and Their Graphs, Transformations of Functions, and Using...

Lesson Planet

#### Biology Junction PowerPoint Presentations

Add a little power to your biology classes with a collection of 18 colorful presentations that cover everything from an introduction to the scientific method to lab safety rules, from acids to vaporization, Although designed as an AP...

Lesson Planet

#### Chemistry with a Conscience

Green chemistry and sustainability are the focus of a unit module that asks young scientists to use the Twelve Principles of Green Chemistry to assess how green a product’s chemicals, reactions, or processes are. Class members engage in...

Lesson Planet

#### AP Calculus AB

Prepare high school mathematicians for the AP Calculus AB exam with a collection of 38 videos that can be used to introduce the topics or as a review. The videos focus on two processes; differentiating a function and integrating a...

Lesson Planet

#### Statistics Fun: How to Calculate Permutations and Combinations

A four-video tutorial uses virtual manipulatives to clarify the meaning of permutations, combinations, and factorials. The narrator uses digital tools to show substitution into the permutation and combination formula collection, as well...

Lesson Planet

#### Chemistry Formula Practice

Practice naming chemical compounds or stating the formula when given the name. Discover how well you have mastered these skills either by time or percentage correct.

Lesson Planet

#### Using the Quadratic Formula

It's the video your algebra class has been waiting for - Sal explains the quadratic formula! He describes it as "one of at least the top five most useful formulas In mathematics" and recommends that it be memorized, as long as one also...

Lesson Planet

#### Solving the Unknown with Algebra: Lesson 3: Functions and Formulas/Square Roots

This lesson has a number of fun worksheets for a pre-algebra or beginning algebra class. The main emphasis of this lesson is functions, formulas, and looking at square roots. It is the third lesson in a series on solving for unknowns,...

Lesson Planet

#### What is the Formula for the Volume of a Cone?

All you need are a few values to find the the volume of a cone! Watch an informative math video that guides learners through the formula needed, as well as the relationship between the cone's volume and the volume of other...

Lesson Planet

#### Midpoint and Distance Formulas

The shortest distance between two points is a straight line. Learners use the Pythagorean Theorem to develop a formula to find that distance. They then find the midpoint using an average formula.

Lesson Planet

#### Quadratic Formula

The mechanics of using the quadratic formula are clearly detailed in this example-full presentation, along with how to identify and walk through the algorithm. Step-by-step attack methods are provided with examples of several different...

Lesson Planet

#### Quadratic Formula

When all else fails, use the quadratic formula! A video lesson introduces the quadratic formula to scholars and then demonstrates two problems. One problem results in integer solutions, the other in irrational solutions.

Lesson Planet

#### Midpoint Formula

The midpoint formula - which Sal maintains is "silly to memorize" since you simply average - is the focus of this video. Viewers will appreciate the seamless transition between algebraic and geometric concepts in this lecture.

Lesson Planet

#### Stories That Formulas Tell

Learn the stories a formula holds. An interesting lesson takes a unique approach to teach how to use formulas. Beginning with a formula, learners predict what the variables stand for and then use the formula to make calculations and tell...

Lesson Planet

#### A Five Day Approach to Using Technology and Manipulatives to Explore Area and Perimeter

Young mathematicians build an understanding of area and perimeter with their own two hands in a series of interactive geometry lessons. Through the use of different math manipulatives, children investigate the properties of rectangles,...

Lesson Planet

#### The Mathematics of Chemical Formulas

Wow! This is one of the most exhaustive presentations on finding chemical formulas that you will come across! Beginning with the basics, and leaving junior chemists with procedures and concrete examples, this PowerPoint certainly...

Lesson Planet

#### Formula from Mass Composition

Students of chemistry are shown how to calculate the empirical formula from a molecule's mass composition. Sal uses a variety of elements from the Periodic Table to demonstrate the process and the calculations involved to arrive at the...

Lesson Planet

#### Quadratic Formula

This worksheet is part of the TI-Nspire lesson on the quadratic formula. Pupils determine the solutions of a quadratic function by looking at a graph and the discriminant. They use the quadratic formula to solve quadratic functions on...

Lesson Planet

#### Finding the Formula of Magnesium Oxide

Rather than simply matching up the ionic charges on paper, this exercise gets chemists into the lab to determine the chemical formula for magnesium oxide! If a know amount of magnesium is used, an oxidation reaction results in this...

Lesson Planet

#### Quadratic Formula

Mathematicians determine the solutions of a quadratic function by looking at a graph. They use the quadratic formula to solve quadratic functions on their Ti-Nspire.

Lesson Planet

#### Molecular Formula

Looking for the formula for success in chemistry class? Socratica's lesson on Molecular Formula, from its Chemistry Lessons series, is the solution! The narrator guides learners through the differences between empirical and molecular...

Lesson Planet

#### Formulas

Help learners understand the benefits of rearranging a formula. Scholars practice rearranging formulas for specific variables. They also analyze formulas to understand one variable's effect on the other.

Lesson Planet

#### How was the Quadratic Formula Derived?

If you or your class members are interested in how the quadratic formula is derived, then take a look at this video! The tutorial takes you through each step necessary to derive the quadratic formula from the general form for a quadratic...

Lesson Planet

#### Calculating Empirical and Molecular Formula: What Is a Mass Spectrometer?

What's the formula for success? A unique and well-written resource from JFR Science explains empirical and molecular formulas. Young chemists learn the steps and skills required to determine the formulas from percent composition and...

Lesson Planet

#### How Was the Distance Formula Derived?

Are you working on the distance formula? Derive the distance formula and help your learners by showing them the logic behind the distance formula. This practical video should help conceptual understanding and is appropriate for in-class...

Lesson Planet

#### What is the Quadratic Formula?

What do you do when you are trying to solve a quadratic equation and factoring and graphing aren't working out for you? Use the quadratic formula! Watch this video to find out exactly how to find your solutions with the quadratic...

Lesson Planet

#### Empirical and Molecular Formula

Watch a short and informative video to learn how to distinguish between empirical and molecular formulas. The video also provides some examples of empirical and molecular formulas for hydrocarbons.

Lesson Planet

#### Formulas and Literal Equations

Game on! A game and a video demonstrate the importance of formulas and literal equations for beginning learners. Pairs play a game in which they race to solve equations on the front board. Guided practice reinforces the concepts of...

EngageNY

#### Rearranging Formulas

Model for your learners that if they can solve an equation, they can rearrange a formula with a well-planned lesson that has plenty of built-in practice. As the lesson progresses the content gets progressively more challenging.

Lesson Planet

#### Chemistry Lesson: Formulas for Ionic Compounds

Take your chemistry class on a ionic journey. Individuals write formulas for monoatomic and polyatomic ionic formulas. They determine the correct way to balance these ions based on each ion's individual charge and thoroughly discuss the...

Lesson Planet

#### Discovering the Formulas for Circumference and Area of a Circle

Find formulas using direct measurements and reconstruction. Groups use diagrams of circles and measure their circumferences. With several examples, classmates determine the constant of variation, pi. Pupils continue exploring circle...

Lesson Planet

#### Naming and Writing Ionic Formulas

Explore the process of writing and naming ionic formulas and compounds. Pupils learn to build ionic compounds by analyzing their charges. The instructor then explains how to name the newly created compound.

Lesson Planet

#### Organic Formulae 1

Puzzles are the formula for success in organic chemistry! Hydrocarbons abound in the first of two interactives involving basic organic molecules. The easy-to-use lesson is available online and in print form, so you can pick your delivery...

EngageNY

#### Deriving the Quadratic Formula

Where did that formula come from? Lead pupils on a journey through completing the square to discover the creation of the quadratic formula. Individuals use the quadratic formula to solve quadratic equations and compare the method to...

Lesson Planet

#### What's the Formula for the Square of a Difference?

The Difference Between Two Squares is an algebraic expression where two terms are perfect squares and one is negative. In this clip the Algebra teacher uses the FOIL method to factor a difference between two squares and prove the equation.

Lesson Planet

#### Derivation of the Quadratic Formula

What connection does the quadratic formula have with a quadratic equation? Using a matching activity, pupils construct the algebraic derivation of the quadratic formula in this Algebra II lesson task. The task provides two variations of...

Lesson Planet

#### Explicit Formulas: Tiles for Writing nth Term in a Sequence

Build an explicit formula using tiles. Pupils develop a tile representation of a term within a sequence given figures of previous terms. Using the diagrams, learners develop the explicit formula by recognizing the common difference and...

Lesson Planet

#### Chemistry Practice Problems: Formulas for Chemical Compounds

Help your class cross the finish line as they watch the final video in the series. Pupils complete a set of practice problems to demonstrate the correct way to determine the formulas for ionic mixtures, molecular compounds, and acids.

Lesson Planet

#### Discovering the Area Formula for Circles—Apple Pi

Need an activity that brings your class' understanding of the area formula full circle? The second installment in a two-part series involving geometric calculations further develops the young mathematician's measurement, approximation,...

Lesson Planet

#### Chemical Formulas for Molecules

Newcomers to chemistry compare hydrogen peroxide to water, realizing that the difference of one oxygen atom significantly affects the chemical properties. Other pairs of compounds and their formulas are also examined. A few chemical...

Lesson Planet

#### Properties of Useful Carbon Compounds

Nine action-packed organic chemistry exercises are contained in this mini-unit on carbon containing compounds. Examples include constructing models of alkanes, producing aromatic esters, and preparing pigments for paint and dyes....

Lesson Planet

#### Formulae of Organic Molecules

Take the bewilderment out of basic formula writing! Young organic chemists explore the various ways of writing chemical formulas in an animated video. The narrator explains the process of writing formulas in displayed, empirical,...

Lesson Planet

#### Excel 2016: Intro to Formulas

How do techies use formulas in an Excel spreadsheet to calculate numerical data? A short instructional video teaches scholars about cell references, mathematical operators, and models how to create, copy, and edit formulas.

Lesson Planet

#### Applications of Formulas in Function Notation

Apply the video to learn about applications of function notation. Viewers of an educational video see an example of how to use formulas written in function notation in real-life situations and how to interpret function notation. They...

Lesson Planet

#### Expressions, Equations, Formulae and Identities

Get a grasp on how to use variables in algebra. The resource provides a description of the algebraic structures that use variables. The video introduces expressions, equations, formulas, and identities.

Lesson Planet

#### Proof of Quadratic Formula

Armed with their newfound (or refreshed) knowledge of the quadratic formula, viewers can now work with Sal to prove the formula - an important skill that is often ignored in algebra. Once they learn how to both use and prove the...

Lesson Planet

#### Find the Perimeter of a Rectangle Using an Area Model

A real-world problem is posed at the beginning of the fourth of six lessons on applying formulas for area and perimeter. A review of the definition of squares and rectangles begins the discussion, followed by an example of solving a...

Lesson Planet

#### Use Area Models to Find the Area of Rectangles

Use area models as a strategy for solving problems involving finding the area of a rectangle. The definitions of rectangle and area are reviewed, along with the difference between perimeter and area. Then, two different problems are...

Lesson Planet

#### Chemistry Lesson: Empirical and Molecular Formulas

A short video is a wonderful addition to enhance your chemistry instruction. It contains a thorough explanation of empirical and molecular formulas, delivered in less than five minutes. It is perfect for an introduction into chemical...

Lesson Planet

#### Solving Using the Quadratic Formula Worksheet

In need of a practice worksheet solving quadratic equations using the formula? Have no fear, we have one for you! This worksheet provides the formula at the top with 14 questions following using a variety of leading coefficients.

Lesson Planet

#### Problem Solving Application: Use Formulas - Reteaching

In this problem solving instructional activity, 5th graders examine the use of the formula for finding the volume of a rectangular prism. They apply the formula to find the answer to 1 word problem while showing their work on the page.

Lesson Planet

#### Use Formulas for Areas

In this using formulas to find area practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.

Lesson Planet

#### Empirical Formula, Molecular Formula, and Hydrates

A series of questions to check full understanding by your talented class. Multiple examples are given of compounds and their formation. Pupils are expected to calculate the correct mole values or formulas from the masses, and common...

Lesson Planet

#### Chapter 5: Naming Compounds/Writing Formulas

Here is an all-encompassing lesson on naming chemical compounds and writing formulas. It begins by using a color-coded periodic table to teach about the element groups: metals, transition metals, non-metals, and metalloids. Anions and...

Lesson Planet

#### WS 4.1 Balancing Equations/Formula Mass

In this equations and formula mass activity, students determine if six equations are properly balanced, they balance nineteen equations and they determine the formula mass of eight molecules.

Lesson Planet

#### The Distance and Midpoint Formula

In this college level mathematics worksheet, students solve use the Pythagorean Theorem to find the missing side of a right triangle and explore the connection between the Pythagorean Theorem and the distance formula. Students also...

Lesson Planet

#### Exploring the Distance Formula with the TI- Navigator

Students explore the distance formula. In this geometry lesson plan, students investigate the relationship between movement on the coordinate lane and cardinal directions. Students explore the distance formula in terms of the...

Lesson Planet

#### Exploring Quadratic Data Using Translation and Dilation

Mathematicians analyze the vertex form of a parabola and find an approximate fit of a model. They explain the quadratic parabola function and its properties by developing quadratic models. They use translation and dilation to change the...

Lesson Planet

#### Distance and Midpoint Formulas

Small groups work through two guided activities to derive the distance and midpoint formulas for the coordinate plane. The activities begin with concrete examples and move to abstract.

Lesson Planet

#### Equations and Formulas

Your class is asked to use inverse operations to solve eleven equations for unknown variables or to rearrange formulas to highlight a quantity of interest. By using the same reasoning as solving one- and two-step equations, algebra...

Lesson Planet

#### Using the Nernst Equation

Explore the application of the Nernst Equation to calculate a cell voltage. The instructor explains the purpose of the formula and its appropriate application. Using a specific example, he demonstrates the work required when using the...

Lesson Planet

#### Percentage Composition and Empirical & Molecular Formula

In this compounds worksheet, students determine the empirical and molecular formulas for given compounds. This worksheet has 10 problems to solve.

Lesson Planet

#### Using Formulas

For this using formulas worksheet, 10th graders solve 12 different problems that are related to applying various formulas to find measurements. First, they determine the perimeter and area of each given rectangle. Then, students find the...

Lesson Planet

#### Use Cavalieri’s Principle to Compare Aquarium Volumes

Learners are designing a stunning new water feature for an aquarium, but they soon discover that more than just a pretty home for their fishy friends is required. From calculating the volume of a composite shape through the abstract...

Lesson Planet

#### Percent Composition, Empirical and Molecular Formulas

Help your pupils understand when empirical becomes molecular. The lesson presentation demonstrates the connection between empirical formulas and molecular formulas. Then, given percent composition, the lesson demonstrates the steps to...

Lesson Planet

#### Formulas and Percent Compositions of Ionic Compounds

Try not to blind anyone with science by following the safety rules. The lesson encourages scholars to form an ionic compound from magnesium and chlorine. Then they determine the empirical formula and determine the mole ratio and percent...

Lesson Planet

#### Empirical Formula of a Compound

Because of the work of John Dalton, we are able to write formulas for compounds. The hands-on experiment has scholars prepare a compound from its elements. Using mass data, individuals write the empirical formula for the compound.

Lesson Planet

#### Solving Formulas for the Given Variable

Recycle, reuse, and rearrange! Young scholars learn to rearrange formulas to highlight a variable of interest. They then use their new formulas to make calculations.

EngageNY

#### Recursive Formulas for Sequences

Provide Algebra I learners with a logical approach to making connections between the types of sequences and formulas with a lesson that uses what class members know about explicit formulas to develop an understanding of recursive formulas.

Lesson Planet

#### Percent Composition and Empirical Formulas

Investigate empirical formulas and their relationships to the composition of a compound. The lesson first demonstrates a percent composition calculation. It then defines an empirical formula and applies it to given masses to determine a...

Lesson Planet

#### Empirical Formula

Let's determine the molecular formula for skunk spray! High schoolers watch a video to learn how to calculate an empirical formula from given masses. The video then demonstrates how to use mass spectrum results to determine a molecular...

Lesson Planet

#### Shampoozled—Part 1: Formula Calculation

Time for your classes to show off what they've learned! The 11th installment in the series of 24 uses concepts learned in the previous 10 lessons to create the perfect shampoo formula. Their formulas consider both sustainability and...

EngageNY

#### Using the Quadratic Formula

What is the connection between the quadratic formula and the types of solutions of a quadratic equation? Guide young mathematicians through this discovery as they use the discriminant to determine the number and types of solutions, and...

EngageNY

#### From Unit Cubes to the Formulas for Volume

Make connections between the volume formulas for prisms. Pupils discover similarities in calculating volumes of prisms with the same size bases. The scholars then determine a second formula for volume and use it based upon the...

EngageNY

#### The Formulas for Volume

What happens to the volume if a dimension is changed? Scholars investigate the changes in the volume of rectangular prisms if different dimensions are multiplied by factors. They make the connection to the change by using volume formulas.

Lesson Planet

#### Recursive and Explicit Geometric Formulas

Don't wait for the rebound—grab the resource at the first opportunity. A simple experiment has young mathematicians record the successive rebound heights of dropped balls. The data set represents a geometric sequence, so they write...

Lesson Planet

#### Deriving the Sector Area Formula

Define the area sector as a fractional part of the area of a circle. Scholars write a formula they can use to find the area of a sector and define any variables used in the formula. The class members explain and justify the formula they...

Lesson Planet

#### Empirical Formula

With empirical formulas, it's all about keeping it simple! Introduce the concept of empirical formula to your chemistry scholars through a detailed video from Socratica's Chemistry Lessons series. The resource uses visual cues,...

Lesson Planet

#### Organic Formulae 2

Is your chemistry class frustrated by the multitude of representations of organic molecules? Add some challenging puzzles to an otherwise ho-hum organic lesson and let the fun begin! The second of a two-part activity focused on basic...

Lesson Planet

#### Ionic Formulae 1

The ionic formula for banana would be BaNa2. Scholars work their way through four puzzles reviewing ionic formulas. Each puzzle requires scientific knowledge as well as logic and problem-solving skills.

Lesson Planet

#### Use the Quadratic Formula to Find Roots of the Function

Get to the root of the problem with an instructive lesson! Learners find the roots of a function using the quadratic formula. A video shows the process and includes an explanation of the substitution steps.

Lesson Planet

#### Ionic Formulae 2

Scientists call ions with a negative charge anions. Scholars work through one matching puzzle and four logic puzzles reviewing the chemical formulas for anion ions. Each level increases in difficulty and solidifies the concept in pupils'...

Lesson Planet

#### Distance Formula: Right Triangles

Go the distance with a far out resource. Individuals use an interactive to create right triangles on a coordinate plane to help find distance between two points. Challenge questions aid them in developing the distance formula.

Lesson Planet

#### Midpoint and Segment Bisectors: The Midpoint Formula

Let's meet in the middle. Given two points on the coordinate plane, pupils use the interactive to find the midpoint. The interactive provides a graphical display of the midpoint and the midpoint formula with the coordinates of the...

Lesson Planet

#### Recursive Formulas: Fibonacci Sequence

Explore the building blocks of the Fibonacci Sequence. Given the lengths of sides of squares, pupils deduce the pattern to determine the lengths of two more squares. Learners continue to work with recursive formulas to generate numerical...

Lesson Planet

#### Find the Area of a Rectangle Using a Polynomial (Example)

Apply polynomial multiplication to area. The short video in a large series shows the process of creating a polynomial formula for the area of a rectangle. Using the two expressions for the length and width of a rectangle, pupils see how...

Lesson Planet

#### Use Coordinate Geometry to Represent and/or Solve Problems

A geometry video explains how to solve for midpoint, length of a line, and use the Pythagorean Theorem. It includes multiple guided practice problems for all three equations.

Lesson Planet

#### Graphs Using Slope-Intercept Form: Zip-Line

Zip lines aren't so scary when all your scholars use them for is math. Young mathematicians see how the slope of a zip-line to a building changes as the height changes. They answer a set of challenge questions regarding the scenario.

Lesson Planet

#### Using Formulae

In this Formulae worksheet, 10th graders identify and solve 9 different problems that include using particular formulas as given in each set of instructions. First, they determine the perimeter of a rectangle using the formula given....

Lesson Planet

#### Perimeter of Rectangles

Young mathematicians have been using formulas for many years, so give them extra practice with complex problems using those same formulas. Your classes apply strategies to problems that require higher order thinking. Examples include one...

Lesson Planet

#### Empirical Formula: From Percentage to Formula

Starting with definitions of empirical and molecular formulas, this slide show guides pupils through the ways to calculate and produce chemical formulas as percentages and molar ratios. A number of examples are given for viewers to try...

Lesson Planet

#### Writing Chemical Formulas

Students study how to write chemical fomulas by reviewing the combinations atoms form into compounds. They write a procedure to test various substances and name the compounds and write formulas. As they construct models for formulas and...

Lesson Planet

#### Distance Formulas

In this distance formulas worksheet, students identify and complete 9 various questions that include using the distance formulas to solve. First, they use the formulas given to respond to each of the questions in the tables shown on the...

Lesson Planet

#### The Pythagorean Theorem, the Distance Formula, and Slope

Learners explore the concept of the Pythagorean Theorem. In this Pythagorean Theorem lesson plan, pupils use the Pythagorean Theorem to derive the distance formula. They are given points on a coordinate grid and they find the distance...

Lesson Planet

#### Writing Chemical Formulas

The tables list common ions and their ionic properties and then ask for formulas of their bonded compounds.

Lesson Planet

#### The Distance Formula and Marching Nonviolently for Social Change

Students explore the distance formula using real world data from nonviolent marches for social change. In this secondary mathematics lesson, students investigate the marches of Gandhi and King using maps overlaid with a coordinate...

Lesson Planet

#### The Distance Formula

Complete word problems and create graphs based on the distance formula. With 18 problems in total, inidividuals get many opportunities for repetition and practice of problem-solving strategies.

Lesson Planet

#### The Pythagorean Theorem and the Distance Formula

Young scholars find missing side lengths of triangles. In this finding missing side lengths of triangles lesson, pupils use the Pythagorean theorem. They derive the distance formula from the Pythagorean Theorem. Pupils solve Pythagorean...

Lesson Planet

#### Pythagorean Theorem and Distance Formula

In this Pythagorean Theorem instructional activity, pupils use the Pythagorean Theorem to determine the distance between two points on a coordinate plane. This two-page instructional activity contains seven multi-step problems. Answers...

EngageNY

#### An Area Formula for Triangles

Use a triangle area formula that works when the height is unknown. The eighth installment in a 16-part series on trigonometry revisits the trigonometric triangle area formula that previously was shown to work with the acute triangles....

EngageNY

#### Addition and Subtraction Formulas 1

Show budding mathematicans how to find the sine of pi over 12. The third lesson in a series of 16 introduces the addition and subtraction formulas for trigonometric functions. Class members derive the formulas using the distance formula...

EngageNY

#### The Volume Formula of a Pyramid and Cone

Our teacher told us the formula had one-third, but why? Using manipulatives, classmates try to explain the volume formula for a pyramid. After constructing a cube with six congruent pyramids, pupils use scaling principles from previous...

Lesson Planet

#### Ionic Compound Formulas

By contrasting cations and anions, this presentation shows how to predict ionic charges by periodic groups. The slides conclude with a few guided practice problems for writing ionic compound formulas.

Lesson Planet

#### Quadratic Formula 1

Take the first step toward understanding the quadratic formula. Given the general standard formula for a quadratic equation, pupils complete the square. Learners then convert the standard formula to an equation they can solve by taking a...

EngageNY

#### Using Trigonometry to Determine Area

What do you do when you don't think you have enough information? You look for another way to do the problem! Pupils combine what they know about finding the area of a triangle and trigonometry to determine triangle area when they don't...

Lesson Planet

#### Alternate Formula for the Area of a Triangle: Alternate Area of a Triangle

It's always nice to have a plan B. Pupils investigate an alternate formula for the area of a triangle that uses sine. A set of challenge questions shows how the new formula relates to the well-known formula of (1/2)bh.

EngageNY

#### Describing the Center of a Distribution Using the Mean

Everyone does their fair share. The sixth segment in a 22-part unit presents the mean as a fair share. Groups build a conceptual understanding of the mean of a data set, rather than simply learn an algorithm. Learners use the...

Lesson Planet

#### Using Empirical Data in the Classroom: Raptor Migrations!

Raptor flight patterns align with seasonal changes in net primary productivity. Here is a thought-provoking instructional activity that uses empirical data from a video to help scholars understand raptor migrations, producers/consumers,...

EngageNY

#### Solving Area Problems Using Scale Drawings

Calculate the areas of scale drawings until a more efficient method emerges. Pupils find the relationship between the scale factor of a scale drawing and the scale of the areas. They determine the scale of the areas is the square of the...

Lesson Planet

#### How to use Excel to Calculate Confidence Interval

Utilize Excel software to analyze a set of data by making statistical calculations. The instructor shows how to find the standard deviation, mean, minimum, maximum, margin of error, confidence intervals, and range using Excel commands....

EngageNY

#### Making Scale Drawings Using the Ratio Method

Is that drawn to scale? Capture the artistry of geometry using the ratio method to create dilations. Mathematicians use a center and ratio to create a scaled drawing. They then use a ruler and protractor to verify measurements.

EngageNY

#### Using Trigonometry to Find Side Lengths of an Acute Triangle

Not all triangles are right! Pupils learn to tackle non-right triangles using the Law of Sines and Law of Cosines. After using the two laws, they then apply them to word problems.

Lesson Planet

#### Part 1 of Proof of Heron's Formula

Providing the first installment in a series devoted to the exploration of Heron's Formula, this video is a high-level experience that delves into a proof using algebra. It demonstrates a step-by-step process for finding the area of a...

Lesson Planet

#### Matter and Energy: Equations and Formulas

Using simple materials, an informative lesson demonstrates the Law of Conservation of Matter and explains how to balance chemical equations. Young chemists perform experiments, analyze reactions, and balance chemical equations on their...

Lesson Planet

#### Area Model of Multiplication Using Base 10 Manipulatives

Explore two-digit multiplication with your class as they work in groups to build models of two-digit multiplication using base 10 manipulatives. They construct rectangles replacing standard numbers with equivalent place values using the...

Lesson Planet

#### Area of a Triangle: Formula

Determine the area of a triangle using the formula 1/2L x H. The formula is shown then demonstrated on both regular and irregular triangles. There are five practice problems included.

Lesson Planet

#### Midpoint Formula

By selecting the resource, you're already halfway to understanding midpoints. Pupils use a slider to locate midpoints on the coordinate plane. They connect this conceptual understanding to the formula for the midpoint of a line segment.

Lesson Planet

#### Use Formulas

In this mathematical formulas worksheet, learners read 3 mathematical statements and explain how the word "deep" is used in each one.

Lesson Planet

#### Don't Take it so Literal

The process is literally the same for solving an equation. Pupils gain practice in manipulating formulas and equations to solve for a variable of interest. The lesson connects solving literal equations to solving an one-variable...

Lesson Planet

#### Spreadsheet Tutorial 1: Formulae, Functions, and Averages

Spread your knowledge of spreadsheets. The first of five tutorials in the Spreadsheet Data Analysis unit introduces the basics of spreadsheets. It shows future data analysts how to organize and format tables, and how to use functions to...

Lesson Planet

#### Using Map Scales to Figure Distances and Areas

The asteroid is getting closer and the question is whether the state of Alabraska is large enough for the shelter calculated in the previous activity. Teams determine the scale of their project and then use the scale on the map to...

Lesson Planet

#### Using Formulas and Literal Equations

In this using formulas worksheet, 9th graders solve and complete 31 different types of problems. First, they use the given formula to find the length of the missing base for triangles with the given dimensions. Then, students solve each...

Lesson Planet

#### How Do You Solve a Formula For a Variable?

Given a formula, move the terms around to isolate a given variable. In this problem using the formula for perimeter, use the subtraction property of equality, and the division property of equality to move the terms from one side of the...

Lesson Planet

#### Formulas for Elementary and Intermediate Algebra

Give your scholars the support they need to work with formulas. A reference page offers definitions and picture examples of perimeter, area, surface area, volume, the Pythagorean theorem, a variety of shapes, and more.

Lesson Planet

#### How Do You Solve a Word Problem Using the Direct Variation Formula?

Have your class figure out how much "Teddy" weighs on the moon and how to translate words into algebra! This video shows pupils how to take a word problem, and then solve it using the direct variation formula and given information. Great...

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#### Formulae of Compounds

Many people confuse the chemical formulas for copper carbonate and copper oxide. A set of challenging puzzles review commonly confused compound names and their symbols. Through a series of four puzzles, pupils match the names and...

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#### Area of Rectangles

A critical skill in mathematics is using formulas to solve problems. Learners see the area formula for rectangles applied to three different types of problems. The video instructor demonstrates problems represented with a diagram,...

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#### Use the Addition Rule to Calculate the Probability of Disjoint Event A or B

Learning about probability and enjoying the lesson don't have to be disjoint events. A helpful video guides pupils through a few examples of probability with dice and cards to show how the formula calculates the result.

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#### Molecular and Empirical Formulas

An introduction to molecular and empirical formulas awaits your students. Sal uses the elements benzene, water, and sulfur to illustrate the ways to come up with a molecular and an empirical formula. Additionally, Sal shows students how...

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#### Where Does the Formula for a Term in an Arithmetic Sequence Come From?

There is a formula to find the nth term in an arithematic sequence. But first, the instructor in the video will go through several steps and lots of explanations about how to get that formula. Watch and listen carefully. And then maybe,...

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#### Developing and Using Formulas

Pupils discover how formulas are created and how they are used in mathematical equations. They are guided through a hands-on group activity and follow up with written practice problems. This lesson includes practice worksheets and...

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#### Acid Non-Acid

Using these printable cards, chemistry fanatics can practice identifying acids by the name or by the chemical formula. The names are obvious since they all end in acid, so perhaps it would be more valuable to exclude the name cards from...

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#### Formulas from Masses

In this mass worksheet, students determine the percentage composition of given compounds. Students write the empirical formula from the percentage composition. This worksheet has 5 problems to solve.

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#### Empirical Formulas

High schoolers investigate empirical formulas for molecules. For this empirical formulas lesson plan, students use paper ions to form formulas and they show these are empirical formulas. They use ions of carbon and hydrogen showing...

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#### Formula Mass

In this formula mass worksheet, students read about molecular substances and their formula masses. They find the formula masses for six compounds using the atomic masses of its elements.

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#### Chemical Formulas

Students assess how to go from writing ionic chemical formulas to nomenclature and naming chemical compounds. They brainstorm former studies and share their thoughts in small groups. A list of everyday products (shampoos, toothpaste,...

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#### Writing Ionic Formulas

In this ions worksheet, students use a table of common ions to determine how to write the chemical formula, using subscripts, to make a neutral compound. This worksheet has 44 problems to solve.

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#### Reading Chemical Formulas

Students interpret basic chemical formulas. When class begins, students interpret a "chemical formula" for fruit salad. After they interpret the recipe, students use the same strategies to identify chemical formulas. They evaluate the...

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#### Formula for Compounds and Naming Compounds

In this naming compounds worksheet, students write the formulas and name the compounds for 4 tables of compounds and 2 sets of compounds. They must determine the compounds formed given two elements and write the simplest formulas.

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#### The Quadratic Formula

In this quadratic formula worksheet, 9th graders identify and solve 20 different problems by applying the quadratic formula to each one. First, they read the lesson and examples to identify the quadratic formula. Then, students use the...

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#### The Quadratic Formula

In this quadratic formula worksheet, students use the quadratic formula to solve given problems. Examples and explanations are given at the beginning of the worksheet. This one-page worksheet contains 20 problems. Answers are provided...

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#### Expressions and Formulas

In this expressions and formulas worksheet, 9th graders solve and complete 7 different types of problems related to various expressions and formulas. First, they define order of operations and explain why it is used. Then, students list...

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#### Formulas and Problem Solving Quiz

In this problem solving worksheet, students determine the empirical and molecular formula of a substance, they write a balanced equation and they determine the amount of a substance for a chemical reaction to proceed.

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#### Pythagorean Theorem and Distance Formula

In this Pythagorean theorem and distance formula learning exercise, young geometers use the two formulas to find the distance between points. They complete 12 problems.

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#### Evaluating Formulas

In this evaluating formulas instructional activity, 9th graders solve 10 different problems related to various types of formulas used in evaluating equations. First, they determine the value of the indicated variable. Then, students...

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#### Lab 2: Determination of a Chemical Formula: The Reaction Between Iodine and Zinc*

In this chemistry worksheet, students perform an experiment to determine the empirical formula of the compound formed between iodine and zinc.

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#### Pythagoras and Distance Formula

In this Pythagoras and Distance Formula worksheet, learners read real-life story problems, determine needed information, write equations, and then solve the problem. Students use the Pythagorean Theorem and Distance Formula to compute...

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#### Distance Formula

Students determine the distance between two points. In this distance formula lesson, groups of students determine the distance between points in real life situations. They calculate the distance from one point in the school to another.

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#### Finding the Formula of Magnesium Oxide

In this formula for magnesium oxide worksheet, students perform an oxidation reaction between magnesium and the oxygen in the air to produce magnesium oxide. Using the known masses of the magnesium and the end product, students find the...

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#### Lesson 10-6: Using the Quadratic Formula

In this quadratic formula worksheet, students solve 5 quadratic problems. Students use the quadratic formula to find maximums, minimums, roots, and y-intercepts.

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#### Probability Formula

In this probability formula worksheet, 10th graders solve and complete 10 different problems that include identifying various polygons illustrated. First, they study the polygons and use the probability formula to calculate each...

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#### Chemical Formulas

Here is an interesting lesson which invites learners to focus on understanding and interpreting the symbols used in writing and communicating information about chemical elements, compounds, and equations. The hope is that this knowledge...

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#### Another Mass Composition Problem

Sal builds on the previous video which shows students how to calculate the mass composition of a compound from its empirical formula. This problem uses the elements Hydrogen, Oxygen, and Sulfur. The process requires quite a bit of...

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#### Formula of an Ionic Compound lab

Model the steps to an ionic compound lab through a video representation. The video lesson shows the procedure for a lab designed to develop the formula for an ionic compound. The focus is on finding the correct ratio of the two ions.

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#### Volume of Pyramid

Go beyond the basic formulas and uncover the surface area and volume of 3-D shapes with this comprehensive and organized worksheet packet. The problems include the basic formula computations while also challenging your learners to derive...

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#### Recursive and Explicit Formulas

Ride the wave to understanding formulas. Groups conduct an experiment to determine how long it takes to complete "the Wave" using different numbers of people. Applying their results, they write recursive and explicit formulas, and then...

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#### Symbols and Formulas

Teach the basics of chemical symbols and formulas. A simple video lesson outlines the fundamentals of chemical symbols. Learners can watch and rewatch to ensure understanding.

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#### Triangle Area

While the lesson focuses on right triangles, this activity offers a great way to practice the area of all triangles through an interactive webpage. The activity begins with the class taking a square paper and cutting in in half; can they...

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#### Quadratic Formula Foldable

Learners use the determinant of the quadratic formula to find the number of real number solutions that exist in each given quadratic function.

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#### The Area of Acute Triangles Using Height and Base

Use the height of an acute triangle to create two right triangles. The third lesson in a series of 22 has pupils divide acute triangles into two right triangles. Scholars calculate the areas of the two right triangles and add them...

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#### Interpret The Rate of Change Within the Context of Everyday Life

Rate of change isn't found only in a classroom but in everything that fluctuates. Show your learners they can find the rate of change in real-world situations with examples using time and temperature. The video starts by reviewing how to...

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#### Chemistry Lesson: Mole Ratio from Chemical Formulas

Need an exciting way to teach mole ratios? This short video segment details a step-by-step method to determine the mole ratio of chemical compounds and relates these ratios to molar mass. The resource may be used to enhance your current...

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#### The Area of All Triangles Using Height and Base

Drop in the altitude is all that is needed. Pupils explore finding areas of different types of triangles. Learners realize the formula for finding their area is the same and explore the location of altitudes in triangles to finish the...

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#### Area of Rectangles Using Sums and Differences

Use the formula for the area of a rectangle for more than just rectangles! Scholars see that they can use common area formulas to find the area of irregular shapes.

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#### Angles in Polygons

Show your class that finding angle measures is a regular calculation with a resource that provides 12 problems dealing with the measures of angles in regular polygons. Pupils use formulas for the sum of measures of angles in a polygon to...

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#### Determine the Area of a Shaded Region Using a Polynomial (Example)

Looking at area with a hole. Using algebraic expressions as dimensions, learners see how to calculate the area of a rectangle that contains a square hole. The instructional video shows how to create a single expression for the area of...

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#### Adventures With The Fish Pond: Population Modeling

Build up from the previous activity where your learners charted the population growth and decay of a fish pond with M&Ms®. Have them look at the data from that activity and create a Now-Next, or recursive equations, to predict the...

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#### Midpoint Formula Worksheet

In this geometry worksheet students use the midpoint formula to determine the midpoint of a line segment given the end points. The one page worksheet contains eight problems. Answers provided.

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#### What is the Formula for the Area of a Triangle?

The teacher explains how the formula for a triangle was determined. It is related to a parallelogram. What? The formula for the area of a triangle is derived from the area of a parallelogram? Seeing is believing, so watch this video to...

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#### What is the Formula for the Volume of a Prism?

Is prism just another mathematical term for a solid? It must be since this lesson is about volume. The teacher illustrates and explains how to find the volume of a rectangular prism and also how to find the volume of a triangular prism....

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#### The Quadratic Formula

Students complete math problems involving the quadratic formula. Using Internet technology, they visit web sites to answer questions about polynomials and the quadratic formula. Students explore the degree of a polynomial, the purpose of...

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#### Distance, Rate and Time

Explore the use of formulas to problem solve with a video example that uses the distance formula to find a speed and then uses the speed to determine a time. The one example shows the different applications of the formula.

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#### Problem-Solving Application: Use a Formula - Homework 21.7

Learners use length and width, height and length, and area and volume to solve surface areas. They solve four word problems.

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#### The Quadratic Formula

In this algebra worksheet, students solve 10 equations using the quadratic formula. In problems 5, 6, 9 and 10 students must first get the equation in standard form.

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#### Addition and Subtraction Formulas 2

Knowing the addition formulas allows for the calculations of double and half formulas. The fourth installment of 16 has the class use the addition formula to develop the double angle trigonometric formulas. Using the double formula,...

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#### Surface Area and Volume

Partners use materials to wrap three-dimensional objects to determine the formula for surface area. The groups use an orange to calculate the amount of peel it takes to completely cover the fruit. Using manipulatives, individuals then...

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#### Using the Quadratic Formula

Your learners will get plenty of practice solving quadratic equations in a instructional activity using the quadratic formula. An extension to this activity would nicely connect MP5 concepts. Have learners use a graphing program to graph...

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#### The Volume Formula of a Sphere

What is the relationship between a hemisphere, a cone, and a cylinder? Using Cavalieri's Principle, the class determines that the sum of the volume of a hemisphere and a cone with the same radius and height equals the volume of a...

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#### Chemistry Lesson: Names & Formulas of Molecular Compounds

What's in a name? Help your pupils learn how to properly name molecular compounds with the engaging video segment. They determine the names and formulas of molecular compounds while discussing the rules they must use.

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#### Solving and Using Literal Equations

You literally need to use the resource. Young mathematicians solve geometric problems by using literal equations. They go on to solve distance/rate/time problems by using literal equations — a great progression that helps introduce the...

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#### Concentration Formula and Calculations

Does a concentrated solution or a diluted solution contain more particles? The 24th video in a 30-part series answers this question as an introduction to figuring concentration using the standard formulas. Through two different formula...

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#### Derivative Formulas Through Geometry | Essence of Calculus, Chapter 3

Geometry to the rescue. By watching a video, scholars see how geometric concepts help explain derivative formulas: areas of rectangles and volumes of rectangular prisms for the Power Rule and similarity and trig ratios for the Sine Rule.

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#### Solving a Formula for a Variable (Example 2)

What's the easiest way to solve for a variable? Future mathematicians watch a short video to see how to solve formulas for a particular variable. Examples include solving the area formula of a trapezoid for one of the bases and rewriting...

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#### Triangle Area: No Height? Use the Sine

No height? No problem! Learners use their knowledge and a little help from GeoGebra to develop the Law of Sines formula. The Law of Sines helps to determine the height of triangles to calculate the area.

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#### Slope

What does slope have to do with lines? Pupils work with lines and determine the slope of the lines informally and with the slope formula. Groups use their knowledge to calculate the slopes of parallel and perpendicular lines. They also...

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#### Surface Area of Three-Dimensional Figures

Lateral area and surface area are simple concepts, but calculating them is not as easy! Using formulas, learners calculate lateral area and surface area for the same three-dimensional figures. The resource discusses the formula variables...

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#### Problem Solving Using Distance, Rate, Time (Running)

Go the extra mile to learn about distance. Scholars learn to apply the distance, rate, and time formula by watching a short YouTube video. The narrator of the video works through several examples using running contexts.

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#### Study Jams! Area of a Triangle

Even though there is a wide variety of different triangles in the world, knowing a single equation allows us to find the area of each and every one of them. Follow along with this step-by-step presentation as Zoe clearly models how to...

EngageNY

#### Equations for Lines Using Normal Segments

Describing a line using an algebraic equation is an essential skill in mathematics. The previous lesson in the series challenged learners to determine if segments are perpendicular with a formula. Now they use the formula to determine...

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#### Exploring 3-D Geometry

Take young mathematicians on an exploration of the world of 3-D geometry with this seven-lesson unit. After first defining the terms perimeter, area, and volume and how they apply to the real world, students continue on to learn the...

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#### Know and/or Use Function Notation, Including Evaluating Functions for Given Values in Their Domain

Introduce the basics of evaluating a function using function notation with a video that makes connections between evaluating a function and substituting into an expression. The short presentation works through three examples of...

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#### Formulas for Problem Solving: Finding Distance, Rate, and Time

Go the distance in learning about distance, rate, and time. Young mathematicians use an interactive to investigate the relationship between distance, rate, and time. A set of challenge questions assesses understanding of these...