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Worksheet
Noyce Foundation

Apple Farm Field Trip

For Students 1st - 3rd Standards
Monitor the growth of young mathematicians with a comprehensive addition and subtraction assessment. Using the context of a class field trip to an apple orchard, this series of four story problems allows children to demonstrate their...
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Worksheet
Curated OER

Numerical Analysis: Discrete Least Squares

For Students Higher Ed
In this discrete least squares worksheet, students use a linear algebra approach to discrete last squares approximation. This two-page worksheet contains approximately 10 problems.
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Lesson Plan
Curated OER

Currency Exchange

For Teachers 6th - 8th
Young scholars investigate the currency exchange rate.  In this middle school mathematics instructional activity, student use proportions to exchange between the U.S. dollar and the euro.  Students come up with a product they would like...
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Lesson Plan
Curated OER

Identical Twins

For Teachers 6th
Sixth graders work with equivalent fractions, decimals, and percents. In this equivalency lesson, 6th graders participate in a number of activities aimed at increasing their understanding of equivalent expressions. They form a human...
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Lesson Plan
Curated OER

Keep It Quiet!

For Teachers 4th
Fourth graders study about sound waves and how they behave in various media. They create a soundproofed container. They explain that velocity describes a change in distance over time.
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Lesson Plan
Curated OER

The Colors of Chemistry

For Teachers 6th - 7th
Students investigate the acidity and alkalinity of common household products in an experiment. They use red cabbage juice and litmus paper to show the difference between strong acids and bases as they work with vinegar, dish washing...
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Lesson Plan
Curated OER

Which Bag is Which?

For Teachers 7th - 9th
Students explore number sense by completing a statistical analysis game in class. In this data graphing lesson plan, students utilize visual references such as colored cubes and tiles to map out the results of an experiment outcome such...
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Lesson Plan
Curated OER

Distance over Time

For Teachers 4th - 7th
Learners analyze velocity and how it is determined. They experiment with velocity in order to measure and calculate the magnitude of speed. They use examples in their novel "Skateboard Renegade" to relate velocity to real life situations.
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Lesson Plan
Curated OER

Playground Games

For Teachers 4th - 7th
Students compete in playground games in order to review velocity and wave behavior in real life situations. They demonstrate understanding by calculating velocity in their "Playground Games" packet.
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Lesson Plan
Curated OER

Addition and Subtraction in Center Time

For Teachers 1st
First graders complete center activities as they practice their addition and subtraction skills. They listen to Rick Walton's, "How Many, How Many, How Many" before playing games, and completing addition and subtraction worksheets at...
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Worksheet
Curated OER

Numerical Analysis: Introduction to Approximation Theory

For Students Higher Ed
In this introduction to approximation theory, students compute the slope and intercept of a line. They describe nonlinear relationships. This four page instructional activity contains approximately five problems.
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Lesson Plan
Curated OER

Patterns That Grow

For Teachers 3rd - 5th
Learners investigate growing patterns. For this additive patterns lesson, students analyze the core of growing patterns. Learners extend additive patterns based on the core.
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Lesson Plan
Curated OER

Cups and Cubes

For Teachers 3rd
Third graders explore the use of cups and counters as a model to analyze the effects of operations. They create and use a rule to create a sequential pattern and use cups and cubes to model the relationship.
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Lesson Plan
Curated OER

Using Representations to Model Problems

For Teachers 5th
student make predictions or draw conclusions based on physical and visual representations of profit and sales. They model problems with physical materials and visual representations, and use models, graphs and tables to draw conclusions...
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Lesson Plan
Curated OER

Matrix Multiplication

For Teachers 11th
In this Algebra II worksheet, 11th graders investigate matrix multiplication. The two page worksheet includes instructions and examples and two problems. Solutions are included.   
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Lesson Plan
Scholastic

Scholastic: Solving the Unknown With Algebra

For Teachers 6th - 8th
Young scholars will learn and reinforce skills for solving for unknowns, manipulating equations while keeping them in balance, using formulas to solve real-world challenges, and working with proportions, radicals and exponents.
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Unit Plan
Math Is Fun

Math Is Fun: Solving Inequality Word Questions

For Students 7th Standards
This tutorial models how to solve word problems which state that one unknown variable is greater or less than another. Includes detailed explanations of sample problems and ten practice questions to try.
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Interactive
Calculator Soup

Calculator Soup: Fractions Solve for Unknown X

For Students 9th - 10th
Solve for an unknown value x with this fractions calculator. Find the missing fraction variable in the proportion using cross multiplication to calculate the unknown variable x. Solve the proportion between 2 fractions and calculate the...
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Activity
Discovery Education

Discovery Education: Web Math: Solve a Linear Equation Involving One Unknown

For Students 9th - 10th Standards
This WebMath site explains how to enter your equation with one variable and solve for that variable. It explains step-by-step how to solve the equations and gives the final solutions.
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eBook
Houghton Mifflin Harcourt

Holt, Rinehart and Winston: Homework Help Independent Practice: Solving Equations 1

For Students 9th - 10th Standards
Get independent practice determining if the variable value given is a solution for the equation. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
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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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Unknown Type
Khan Academy

Khan Academy: Linear Equations With Unknown Coefficients

For Students 9th - 10th Standards
Solve a linear equation for a variable where the coefficients are represented by letters. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
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Lesson Plan
Better Lesson

Better Lesson: Variables

For Teachers 3rd Standards
Children will learn the term variable and then work to "attack" a problem using what they know about the relationship between multiplication and division to solve for an unknown.
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Activity
Texas Instruments

Texas Instruments: Solving Rational Expressions

For Teachers 9th - 10th
Students will solve rational equations for unknown variables, use given information to create rational equations, and determine the relationship between rational expressions.