Curated OER
The Nutritional Content of Food
High schoolers are given three unknown samples and must perform two chemical tests in order to determine if the samples contains protein and/or starch. Students work with corrosive or toxic reagents.
Curated OER
Patterns, Functions & Algebra
Students participate in numerous activities and games. In pairs, they play card games to find relationships between a random set of playing cards. After writing samples of Dear Abby letters concerning math problems, students create a...
Curated OER
Letter Symbols
In this letter symbols activity, students solve and complete 4 different types of problems. First, they circle the expressions that are the same as the one shown. Then, students find the value of each symbol. In addition, they simplify...
Curated OER
Algebra, Multiplication, and Division of Fractions
Young scholars gain knowledge by measuring time and distance for solving unknowns in an equation. They also will design an airplane and chance to communicate mathematically by writing essays.
Curated OER
Weighing Time
High schoolers devise a strategy to solve problems that is done in a systematic and mathematical fashion. The finding of the unknown value is the focus of the lesson. To solve linear equations proficiently is the skill of the lesson.
Curated OER
Acids and Bases - Vinegar II
Eighth graders experiment what happens when acids and bases are mixed together. In this acids and bases experimental lesson, 8th graders decide which of three solutions of unknown pH will neutralize a fourth solution of unknown pH.
Curated OER
Radiation Lab
In this radiation worksheet, learners use a data table to determine what kind of radiation is being emitted by unknown sources. This worksheet has 3 problems to solve.
Curated OER
Which Bag is Which?
Students explore number sense by completing a statistical analysis game in class. In this data graphing lesson, students utilize visual references such as colored cubes and tiles to map out the results of an experiment outcome such as a...
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
Students 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...
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...
Curated OER
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
Matrix Multiplication
For this Algebra II worksheet, 11th graders investigate matrix multiplication. The two page worksheet includes instructions and examples and two problems. Solutions are included.
Curated OER
Distance over Time
Students 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
Learners 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 worksheet contains approximately five problems.
Curated OER
Patterns That Grow
Students investigate growing patterns. In this additive patterns lesson, students analyze the core of growing patterns. Students extend additive patterns based on the core.
Scholastic
Scholastic: Solving the Unknown With Algebra
Middle schoolers 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.
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.
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.