Lesson Plan
Curated OER

Chairs Around the Table

For Teachers 3rd - 5th
Youngsters become flexible problem solvers with this challenging lesson. If there are 24 square tables in a restaurant, how many customers can be seated at one time? They can use manipulatives or draw pictures to help them find the...
Lesson Plan
Illustrative Mathematics

Finding an Unknown Angle

For Teachers 4th - 6th Standards
Teach your class how to apply their knowledge of geometry as they explore the unknown. In order to find an unknown angle, students must understand that rectangles have four interior right angles, that right angles have 90 degrees, and...
Lesson Plan
Curated OER

Regents Exam: Solving Rationals 1

For Teachers 9th - 12th
In this rational number worksheet, students add and subtract fractions containing variables. They find common denominators and solve for the unknown. This four-page worksheet contains eighteen problems. Answers are listed on the last...
Lesson Plan
Curated OER

Developing the Concept: Percents

For Teachers 5th - 7th
In this percents lesson, learners review how to solve a multiplication equation where they must solve for a variable. They solve equations with missing numbers and percents.
Lesson Plan
Curated OER

Representing the Unknown

For Teachers 6th - 8th
Student use mental math to solve linear equations. In this algebra lesson, young scholars solve one and two steps equations. They write expressions using variables to identify the unknown.
Lesson Plan
Curated OER

Variables on Both Sides

For Teachers 9th - 10th
Students solve equations with variables on both sides of the equations. In this algebra lesson, students use addition, subtraction, multiplication and division to solve problems. They combine like terms and identify the unknown.
Lesson Plan
EngageNY

Creating and Solving Quadratic Equations in One Variable

For Students 9th - 10th Standards
Give your classes practice at modeling using quadratic models with a resource that uses area and integer problems to allow individuals to create second degree polynomials. Young mathematicians solve equations using factoring and then...
Lesson Plan
Curated OER

Bats and Hot Dogs

For Teachers 7th - 10th
Students identify patterns and relationships from data that is collected and solve variables.  In this investigative lesson students study ocean productivity, the nitrogen cycle and phytoplankton then answer questions.
Lesson Plan
Curated OER

Solving Problems - Writing Equations

For Teachers 8th - 10th
In this solving problems worksheet, students read short word statements, translate them into an algebraic equation, and solve the problem. Twelve problems are listed on this one-page worksheet.
Lesson Plan
Curated OER

Solving Linear Equations

For Teachers 9th
Ninth graders solve linear equations. In this algebra lesson, 9th graders discuss the steps for solving linear equations and work through examples with the teacher. They work in pairs to create their own linear equation and complete a...
Lesson Plan
Mathematics Assessment Project

Matching Situations, Graphs and Linear Equations

For Teachers 8th Standards
What do guitars, candles, and helicopters have in common? They're all in this resource. Learners complete an assessment task to determine the amount of profit made in a guitar class based on given information regarding variable...
Lesson Plan
Curated OER

Equations in the Park

For Teachers 3rd - 4th
Students explore algebraic concepts using real life situations.  In this equations lesson, students develop strategies to solve missing number problems. Students participate in a board game based on algebraic equations.
Lesson Plan
American Chemical Society

Developing Tests to Distinguish Between Similar-Looking Liquids

For Teachers 3rd - 8th
Each group talks about how to test unknown liquids based on their findings in the previous experiment. In this second of four activities, they test unknowns on wax paper, newspaper, and construction paper. As a stand-alone, this lesson...
Lesson Plan
Willow Tree

Direct and Inverse Variations

For Students 7th - 10th Standards
Enhance pupil understanding of proportions and variable relationships by studying direct and inverse variation. Use the idea of a proportional relationship to teach direct variation. Then use a similar pattern to help individuals...
Lesson Plan
Curated OER

Solving Radical Equations

For Teachers 6th - 8th
In this math worksheet, students solve the equations using radicals by raising each one to the power of 2.Then they apply the rules of equality to find the unknown variable.
Lesson Plan
Curated OER

Quadratic Equations with Negative Discriminate

For Teachers 9th - 11th
Solve polynomial equations of degree using different theorems and apply the zero factor theorem for unknown numbers in a quadratic equation. Also use the discriminate to find out the kind of solutions to given quadratic equations shown.
Lesson Plan
Curated OER

Worksheet #2: Algebraic Expressions

For Teachers 9th - 10th
In this algebraic expression worksheet, learners evaluate algebraic expressions involving the addition, subtraction, division, and multiplication of negative and positive integers. Students identify mathematical properties and find the...
Lesson Plan
Curated OER

Algebra Match

For Teachers 12th
Twelfth graders identify the parts of an algebraic equation. They consider the many uses of algebra in daily life. They play a game, Algebra Match, where student pairs work to solve equations listed on index cards.
Lesson Plan
Curated OER

Specific Heat of Metals

For Teachers 9th - 12th
Students determine the specific heat of unknown metals. based on their hypothesis and design proposal. They analyze the findings of the specific heat of the unknown metals. Students complete this by questions, hypothesis, rationale,...
Lesson Plan
Curated OER

The Solution to Pollution is Dilution

For Teachers 9th - 12th
Students consider what happens to herbicides or insecticides that are used in agricultural practices, especially herbicides that are used to control noxious weeds. They become acquaint with a chemical assessment method known as...
Lesson Plan
Curated OER

The Value of a Number

For Teachers 2nd - 4th
Students assess informal methods to solve real-world problems that utilize simple equations that involve one variable. They incorporate concrete objects to assist them in the solving of a variety of equations. The students are actively...
Lesson Plan
Curated OER

Density as a Unique Physical Property

For Teachers 8th - 12th
Students find the density of objects by finding their mass and their volume. In this density lesson plan, students determine the mass of objects, the find the volume by using formulas or by water displacement and they calculate the...
Lesson Plan
Curated OER

Equations for Curves Passing through a Given Set of Points

For Teachers 9th - 12th Standards
Learner use three random locations on the coordinate system and simplify the expression and assign result to the variable loc. They substitute guesses for the center and radius of the circle in the equation for the center of a circle and...
Lesson Plan
Curated OER

Using Thin Layer Chromatography To Identify amino Acids In Solution

For Teachers 8th - 11th
Students will work in groups to design and conduct an experiment to identify amino acids found in an unknown solution. This lesson is taught in three sections: (1) Introduction to chromatography (2) Experimental design session (3)...