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Lesson Plan
Curated OER

Double Dare Addition!

For Teachers 1st - 3rd
Students apply basic number concepts and computation skills while engaging in an enriching group activity. Then they demonstrate their knowledge of addition using a medium that enables everyone to show their solutions for immediate...
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Lesson Plan
Curated OER

Add and Subtract

For Teachers 1st - 2nd
Like the cubs in A Fair Bear to Share, your 2nd grade class will practice adding and subtracting double-digit numbers by grouping, regrouping, and sorting a collection of objects. This requires many resources, but it is well worth the...
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Lesson Plan
Curated OER

Fairy Tale Math

For Teachers 2nd
Have class members rewrite a favorite fairy tale in order to incorporate numerical information. For inspiration, the teacher provides an example written by another second grader. These modified stories are then used to write word...
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Lesson Plan
Curated OER

Ladybug Math

For Teachers K - 2nd
Students count the number of spots on ladybug wings. They add to find total number of spots on ladybug cut outs and complete the associated worksheet. They write ladybug addition story problems.
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Lesson Plan
Curated OER

Fact Families to 10

For Teachers 1st
In this mathematics worksheet, 1st graders complete each fact family. Then they solve each addition and subtraction sentence using counter to show their sentence. Students also explain their idea of what a fact family is to them.
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Worksheet
Curated OER

Transforming Formulas

For Students 7th - 12th
For this formulas worksheet, students transform and algebraically manipulate formulas for various variables.  There are 5 multiple choice questions.
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Lesson Plan
Curated OER

Using a Four-Step Plan to Solve Problems

For Teachers 9th - 10th
Students examine the four-step plan. In this current events lesson, students solve problems using the four-step plan of exploring, planning, solving, and examining.
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Lesson Plan
Curated OER

Solving One-Step Equations

For Teachers 9th
Ninth graders explore the concept of a simple equation. They use addition and subtraction in one step in order to find balance to both sides of the equation. Students are encouraged to succeed using positive praise at the beginning of...
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Worksheet
Curated OER

Missing Addend and Subtraction 1

For Teachers 4th
In this mathematics worksheet, 4th graders write the numbers and x to each picture. Then they write a missing addend sentence and a subtraction sentence to solve each problem. Students also write a missing addend sentence with x and...
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Worksheet
Curated OER

Word Problems and Patterns 4

For Teachers 3rd
In this mathematics instructional activity, 3rd graders solve the problems and write a missing addend sentence for each as needed. Then they subtract mentally and figure out the patterns for each and continue them on.
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Worksheet
Curated OER

Division Practice 2

For Teachers 3rd
In this mathematics worksheet, 3rd graders complete the pattern for each set of numbers. Then they solve each of the four word problems and draw an illustration for each. Students also identify which numbers go into the puzzles illustrated.
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Activity
Richland Community College

Rcc: Solving Inequalities Algebraically and Graphically

For Students 9th - 10th
Straightforward explanations on how to solve inequalities. Includes linear inequalities, double inequalities, absolute value inequalities, polynomial inequalities, and rational inequalities.
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Unit Plan
Math Medics

S.o.s. Math: Solving Inequalities: Basic Rules

For Students 9th - 10th Standards
Explains the basic rules for solving inequalities. Gives examples and exercises with solutions to practice this skill.
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Activity
Discovery Education

Discovery Education: Web Math: Solve a Set of Two Linear Equations

For Students 9th - 10th Standards
This WebMath site explains how to enter your two equations with two variables and solve for those variables. It explains step-by-step how to solve the equations and gives the final solutions.
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Lesson Plan
Hopelink

Hopelink: Math Lesson Idea: Word Problems

For Teachers 3rd - 8th Standards
Teach your students to reason with language and to use imagery to translate language into mathematical equations.
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Activity
Purple Math

Purplemath: Systems of Linear Equations: Definitions

For Students 9th - 10th Standards
Covers the basic definitions involved in systems of linear equations.
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Handout
Purple Math

Purplemath: Basic Trigonometric Ratios: Examples

For Students 9th - 10th Standards
Demonstrates how to use trig ratios to do simple solving of triangles.
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Unit Plan
TED Talks

Ted: Ted Ed: The Myth of Hercules: 12 Labors in 8 Bits

For Students 9th - 10th
Hercules, stricken with a temporary curse of madness, has just committed the most unspeakable crime imaginable. Seeking to atone for the deaths of his family, Hercules must complete twelve impossible tasks that pit him against invincible...
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Website
Purple Math

Purplemath: Numerical Approximation of Zeroes: The Midpoint Method

For Students 9th - 10th Standards
Explains the reasoning and methodology for the process of numerically approximating the zeroes of a non solvable polynomial.
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Handout
Purple Math

Purplemath: Matrix Inversion: Finding the Inverse of a Matrix

For Students 9th - 10th Standards
Inverse matrices are very useful for solving matrix equations. But, given a matrix, how do you invert it? How do you find the inverse? The technique for inverting matrices is kind of clever. For a given matrix A and its inverse A-1, we...
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eBook
Math Planet

Math Planet: Equations With Variables

For Students 6th - 7th Standards
Examples and video tutorials that teach how to solve equations that contain unknown variables.
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Handout
Purple Math

Purplemath: Solving Quadratic Inequalities: Concepts

For Students 9th - 10th Standards
Introduces a conceptual basis for solving quadratic inequalities, looking at linear inequalities and using a knowledge of what quadratic graphs look like.
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eBook
CK-12 Foundation

Ck 12: 2.4 Solving Rational Equations

For Students 9th - 10th Standards
This section builds from previous sections on simplifying, multiplying, dividing, adding, and subtracting rational expressions, and it investigates how to apply those skills to solving rational equations. It also covers several...
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eBook
CK-12 Foundation

Ck 12: 2.7 Simple Radical Models

For Students 9th - 10th Standards
This section explores both expressions and equations with radical signs that can be modeled using real-world situations, and provides opportunities to simplify and/or solve problems that require eliminating radicals.