Lesson Plan
Curated OER

Interior/Exterior Polygon Angles and Tessellations

For Teachers 9th - 11th
Students discover the sum of the interior and exterior angles of several polygons. In this Geometers sketchpad lesson, students work in groups to find the stated measurements of triangles, quadrilaterals, pentagons and hexagons. Students...
Lesson Plan
Curated OER

Cool Math

For Teachers Pre-K - 5th
Students benefit from the correctly selected book for a specific math concept.  In this book selection lesson, students are given a list of books related to specific math concepts.  Students' ages can range from pre-school to...
Lesson Plan
Curated OER

Factoring Trinomials

For Teachers 8th - 9th
Students factor trinomials. In this algebra activity, students use special patterns and formulas to factor. They utilize algebra tiles as a hands-on method for gaining practice with trinomials.
Lesson Plan
Curated OER

Follow That Graph

For Teachers 4th - 6th
Students investigate the graphs of six trigonometric functions. They discover how changes in the equation of the basic function affect the graph of the function.
Website
Cool Math

Coolmath: Solving Compound Inequalities Exercises: A < Bx+c < D

For Students 9th - 10th Standards
This CoolMath resource will help students practice solving compound inequalities. Students can refer to the CoolMath: Solving Compound Inequalities resource as a reference.
Activity
Cool Math

Coolmath: Solving Equations Exercises: Ax+b = Cx+d (With Decimals)

For Students 9th - 10th
This CoolMath resource exhibits the exercise of AX+B+CX+D. Students can refer to the CoolMath: Solving Equations resource as a reference.
Website
Cool Math

Coolmath: Solving 3 X 3 Systems of Equations Exercises

For Students 9th - 10th Standards
This CoolMath resource provides practice with solving 3 x 3 systems of equations by using Cramer's Rule.
Website
Cool Math

Coolmath: Solving Quadratics Recap

For Students 9th - 10th Standards
This CoolMath resource reviews the ways to solve quadratic equations: factoring, finding square roots, and using the quadratic formula.
Website
Cool Math

Coolmath: Solving Quadratics the Square Root Trick

For Students 9th - 10th Standards
This CoolMath resource will help students solve quadratic equations with a square roots trick instead of through factoring.
Website
Cool Math

Coolmath: Solving Quadratic Equations by Factoring

For Students 9th - 10th
This CoolMath resource will help students solve quadratic equations by factoring.
Website
Cool Math

Coolmath: Solving Quadratics a Brief Intro

For Students 9th - 10th
This CoolMath resource introduces student to quadratic equations.
Website
Cool Math

Coolmath: Perpendicular Lines

For Students 9th - 10th Standards
This CoolMath Resource will help students determine if lines are perpendicular by finding the slope, using the point-slope formula, and graphing.
Website
Cool Math

Coolmath: Parallel Lines

For Students 9th - 10th Standards
This CoolMath resource will help students understand how to use slope and the point-slope form to determine if two lines are parallel.
Website
Cool Math

Coolmath: Linear Equations

For Students 9th - 10th Standards
This CoolMath resource will help students learn how to solve linear equations.
Website
Cool Math

Coolmath: Multiplying Polynomials (Binomials) Using Foil

For Students 9th - 10th
This CoolMath resource demonstrates how to use the FOIL Method to multiply binomials.
Website
Cool Math

Coolmath: Some Math Words to Know

For Students 7th - 8th
This CoolMath resource provides definitions and example for the following math words: term, polynomial, binomial, mononomial, and degree.
Website
Cool Math

Coolmath: Substitution Sticking Numbers In

For Students 9th - 11th
This CoolMath resource will help students learn about substitution.
Website
Cool Math

Coolmath: Solving Equations What to Do Messier Equations

For Students 9th - 10th Standards
This CoolMath resource shares how to solve equations that involve multiple steps.
Website
Cool Math

Coolmath: Solving Equations Dealing With Fractions & Decimals

For Students 9th - 10th
This CoolMath resource will help students solve equations. Fractions and decimals will be used to solve these equations.
Website
Cool Math

Coolmath: Solving Inequalities Set Builder Notation

For Students 9th - 10th Standards
This CoolMath resource will help students learn how to solve inequalities.
Website
Cool Math

Coolmath: Polynomial Long Division Freaky Things That Can Happen Part 2

For Students 9th - 10th Standards
This CoolMath resource will help students understand how to apply long division to polynomials.
Website
Cool Math

Coolmath: Polynomials Long Division Freaky Things That Can Happen Part 1

For Students 9th - 10th Standards
This CoolMath resource will help students understand how to apply long division to polynomials.
Website
Cool Math

Coolmath: Solving Inequalities the Freaky Thing

For Students 9th - 10th Standards
This CoolMath resource will help students learn how to solve inequalities. Dividing by negative numbers is featured.
Website
Cool Math

Coolmath: Solving Inequalities Solving Basic Guys

For Students 9th - 10th Standards
This CoolMath resource will help students learn how to solve inequalities and graph them on a number line.