Noyce Foundation
Apple Farm Field Trip
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...
Curated OER
Numerical Analysis: Discrete Least Squares
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.
Curated OER
Currency Exchange
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...
Curated OER
Identical Twins
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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Keep It Quiet!
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.
Curated OER
The Colors of Chemistry
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...
Curated OER
Which Bag is Which?
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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Distance over Time
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.
Curated OER
Playground Games
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.
Curated OER
Addition and Subtraction in Center Time
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...
Curated OER
Numerical Analysis: Introduction to Approximation Theory
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.
Curated OER
Patterns That Grow
Learners investigate growing patterns. For this additive patterns lesson, students analyze the core of growing patterns. Learners extend additive patterns based on the core.
Curated OER
Cups and Cubes
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.
Curated OER
Using Representations to Model Problems
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...
Curated OER
Matrix Multiplication
In this Algebra II worksheet, 11th graders investigate matrix multiplication. The two page worksheet includes instructions and examples and two problems. Solutions are included.
Scholastic
Scholastic: Solving the Unknown With Algebra
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.
Math Is Fun
Math Is Fun: Solving Inequality Word Questions
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.
Calculator Soup
Calculator Soup: Fractions Solve for Unknown X
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...
Discovery Education
Discovery Education: Web Math: Solve a Linear Equation Involving One Unknown
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.
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Solving Equations 1
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.
Math Planet
Math Planet: Equations With Variables
Examples and video tutorials that teach how to solve equations that contain unknown variables.
Khan Academy
Khan Academy: Linear Equations With Unknown Coefficients
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.
Better Lesson
Better Lesson: Variables
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.
Texas Instruments
Texas Instruments: Solving Rational Expressions
Students will solve rational equations for unknown variables, use given information to create rational equations, and determine the relationship between rational expressions.