Lesson Plan
Curated OER

The Absolute Truth

For Teachers 8th - 10th
Students solve problems of inequalities and equations. In this algebra lesson plan, students add, subtract, multiply and divide to solve inequalities. They graph their solutions on a number line.
Worksheet
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Solving Square Root and Other Radical Equations

For Students 11th
In this Algebra II worksheet, 11th graders solve equations involving radical equations.  The worksheet provides an explanation and worked examples.  The two page worksheet contains three problems.  Solutions are not...
Worksheet
Curated OER

Linear Equations 2

For Students 9th
In this linear equations learning exercise, 9th graders solve 8 various problems that are related to solving linear equations. First, they look at each equations and determine which variable to get on its own. Then, students solve each...
Lesson Plan
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Taxes

For Teachers 4th
Fourth graders read Stone Fax and explore earning money, saving, credit and taxes. In this taxes lesson, 4th graders complete a worksheet to develop understanding of paying off debts, keeping a checkbook, calculating sales tax and...
Lesson Plan
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Elimination with Multiplication

For Teachers 10th - 11th
Students solve equations using linear combination. In this algebra instructional activity, students solve a system by checking if a given pair of coordinates are solution to the system. They solve the system using elimination, and...
Lesson Plan
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Equation of a Circle

For Teachers 9th - 12th Standards
High schoolers write the equation of a circle. In this geometry lesson plan, students check the solution of a coordinate pair by evaluating them. They graph the circle given the equation and radius.
Lesson Plan
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Malaria: The Solution

For Teachers 5th - 6th
Students discover that malaria can be controlled and even stopped. They break into six teams to research one of the five elements of the comprehensive approach using the Internet. They then present their findings to the class in a form...
Lesson Plan
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Math: Checking Scale Drawings for Accuracy

For Teachers 5th - 8th
Young scholars critique their own drawings for accuracy and make constructive suggestions prior to reworking them. They discover how scale in maps and drawing relate to relative size and distance. In addition, students comprehend the...
Worksheet
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Graphing Linear Equations

For Students 10th - Higher Ed
In this math learning exercise, students practice solving systems of linear equations using the elimination and substitution methods. They also graph the solutions.
Lesson Plan
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Ranking Salinity

For Teachers 11th - 12th
Students explain the uses of titration in chemistry and in industry. In this chemistry lesson, students determine the concentration of an unknown solution using titration. They calculate the percent of salt in saline solutions.
Worksheet
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Solving Equations

For Students 8th - 9th
In this solving equations learning exercise, students solve and complete 12 different problems that include solving various equations by addition or subtraction. First, they identify and define the difference between using the addition...
Handout
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Rules for Balancing REDOX Equations: (Half-Reaction Method)

For Students 11th - 12th
In this chemistry worksheet, students read the instructions of how to work with the following: acidic and basic solutions, total and net ionic equations, and how to relate these to each other.
Interactive
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Angles in a Straight Line

For Students 9th - 12th
In this online math activity, high schoolers calculate the value of a variety of angles based on a geometric design. This excellent resource allows the students to check their answers, and to get "hints" should they run into...
Worksheet
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Solving Equations with Variables on Both Sides

For Students 7th - 10th
In this solving equations worksheet, students solve 15 equations with variables on both sides of the equal sign. Students are encouraged to check all solutions.
Lesson Plan
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Solve Me-One and Two-Step Inequalities

For Teachers 8th - 9th
Learners solve one and two-step inequalities.  In this Algebra I lesson, students solve inequalities using paper and pencil and use the TI-nspire CAS to check each steps in their work.  Additionally,  the solve feature...
Worksheet
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Absolute Value Equations and Inequalities

For Students 11th
In this Algebra II worksheet, 11th graders solve and graph the solutions to absolute value equations and inequalities. The two page worksheet provides explanation and examples in addition to sixteen practice questions. Answers are...
Lesson Plan
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Solving Problems With Decimal Notation

For Teachers 6th - 8th
In this math worksheet, students find the solutions to the problems that use decimal notation. They decide which operation is necessary for each word problem.
Worksheet
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Solving Single Variable, First Degree Equations

For Students 8th - 9th
In this solving equations worksheet, students solve five single variable, first degree equations, Students also model and solve five word problems using equations.  The solutions are provided.
Interactive
Curated OER

Five Find the Unknown Angle Interactive Problems

For Students 10th - Higher Ed
In this unknown angle worksheet, students use trigonometry functions in five problems to find the unknown angles.  Students may check their solutions and receive hints by using the "Check" and "Hint" button found at the bottom of...
Worksheet
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Solving Equations

For Students 8th - 9th
In this solving equations worksheet, students solve and complete 22 different problems that include using addition and subtraction. First, they solve each equations for the state variable. Then, students define a variable, write an...
Worksheet
Curated OER

Multi-Step Inequalities

For Students 8th - 9th
In this multi-step inequalities instructional activity, students solve and complete 17 different problems that include solving by applying a number of steps. First, they solve each inequality as indicated and checking their solutions....
Worksheet
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Solving Inequalities

For Students 9th
For this inequalities worksheet, 9th graders solve and complete 32 different problems that include using multiplication and division in each. First, they solve each given inequality. Then, students check their solutions, paying close...
Lesson Plan
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Simultaneous Equations Using Elimination

For Teachers 9th - 12th
Students solve a system of two unknowns.  In the Algebra lesson plan, students use a on line computer applet/program to solve a system by the elimination method.  The student's work is self checking, giving immediate...
Interactive
Online Math Learning

Multiplying Fractions and Whole Numbers

For Students 4th - 7th Standards
Though the problems are the same, it's always a little more fun to do them on the computer. Here, mathematicians solve 10 problems by multiplying fractions with whole numbers. After clicking on an embedded link to read the lesson, they...