EngageNY
Solution Sets to Simultaneous Equations (part 2)
Do you want your budding mathematicians to be able to explain 'why' and not just 'do'? This lesson encourages an understanding of the process of elimination. Pupils are expected to understand how and why the elimination method is a valid...
EngageNY
Awkward! Who Chose the Number 360, Anyway?
Don't give your classes the third degree. Use radians instead! While working with degrees, learners find that they are not efficient and explore radians as an alternative. They convert between the two measures and use radians with the...
West Contra Costa Unified School District
Solving Inequalities
What does translating points on a number line have to do with solving inequalities? Young mathematicians first learn about translations of points on a number line, and then use this information to solve linear inequalities in one variable.
Curated OER
The Escape
Young scholars find strategies for investigating number problems. They find a common multiple of a group numbers. The teacher introduces the problem and students read and think about it. In groups, young scholars discuss the problem...
Geometry Accelerated
Accelerated Geometry Review Sheet
Your geometry learners use their knowledge of various geometric concepts to write proofs. Starting with givens containing parallel line segments with transversals and triangles and quadrilaterals, and the mid-point and distance formulas;...
EngageNY
Properties of Trigonometric Functions
Given a value of one trigonometric function, it is easy to determine others. Learners use the periodicity of trigonometric functions to develop properties. After studying the graphs of sine, cosine, and tangent, the activity...
Curated OER
The Intermediate Value Theorem
You and your calculus learners will appreciate this description, discussion, and examples of the Intermediate Value Theorem. Applications of the theorem are also discussed.
EngageNY
Unknown Angle Proofs—Writing Proofs
What do Sherlock Holmes and geometry have in common? Why, it is a matter of deductive reasoning as the class learns how to justify each step of a problem. Pupils then present a known fact to ensure that their decision is correct.
Inside Mathematics
Archery
Put the better archer in a box. The performance task has pupils compare the performance of two archers using box-and-whisker plots. The resource includes sample responses that are useful in comparing individuals' work to others.
Curated OER
The Play
Students work together to solve word problems. They examine the concepts of functions and relations. They develop plans for roles in the play they are creating.
Curated OER
Using Excel To Teach Probability And Graphing
Students engage in the use of technology to investigate the mathematical concepts of probability and graphing. They use the skills of predicting an outcome to come up with reasonable possibilities. Students also practice using a...
Curated OER
Pythagorean Theorem Spreadsheet
Studetns use a spreadsheet to organize data on the sides of a triangle. They use the Pythagorean Theorem and the If then spreadsheet function to decide whether the three sides determine a right triangle. Students work individual...
Curated OER
Using Excel to Reference and Graph Live Data from a Web Site
Learners collect live buoy data about water temperatures in the Gulf of Mexico from the Internet and work individually to organize their data and create a line graph using Excel Spreadsheet. Students analyze their data and examine any...
Curated OER
Sales Spreadsheet
Students use Excel spreadsheets to organize purchases, discounts, sales prices, and sales tax. Students follow step by step instructions and enter formulas as well as use the auto sum feature to calculate required calculations.
Curated OER
Around The Stop Sign
Students analyze a drawing of a regular octagon inscribed in a circle to determine angle measures, using knowledge of properties of regular polygons and the sums of angles in various polygons to help solve the problem. They use...
Curated OER
Logic and Proof Writing
Students define inductive and deductive reasoning and write two column proofs. In this geometry lesson, students analyze arguments and draw conclusion. They define steps necessary to arrive at the correct answer when completing proofs.
Texas Instruments
A Tale of Two Lines
Students graph systems of equation. In this calculus lesson, students graph their lines on a TI calculator. They identify the point of intersection and the type of solution.
Curated OER
Using Excel to Draw a Best Fit Line
Middle schoolers create line graphs for given data in Microsoft Excel. Students follow step by step instructions on how to create their graph, including how to create a trend line. Middle schoolers print graphs without trend lines and...
Curated OER
Making Movies
Students use interactive white boards to solve math problems. In this math problems lesson plan, students produce math casts where they can solve problems, write out descriptions, and communicate what they know and do not know on the...
Curated OER
Walking Home
Learners discover the formulas for calculating distance. In groups, they solve equations determine the distance in a specific amount of time. They record their answers in a chart or graph and compare them with their classmates.
Curated OER
Two-Step Equations
Students explore the concept of solving two-step equations. In this solving two-step equations lesson, students watch a short video about solving equations. Students view a PowerPoint presentation about solving two-step equations....
Purple Math
Purplemath: Systems of Non Linear Equations: Definitions
This Purplemath lesson provides formulas, equations, graphs and explanations of systems of equations.