Curated OER
Algebraic Thinking - Equations
Fifth graders explore equality and inequality by participating in a Tilt/Balance activity. The students listen to the story "Lemonade for Sale" by Stuart J. Murphy and use equations to graph lemonade sale profits.
CK-12 Foundation
One-Step Equations and Inverse Operations: Additive Inverse
Reinforce properties while solving equations. Learners often ignore properties even as they try to apply them. A well-designed lesson emphasizes the role of additive inverses when solving equations.
Curated OER
Basic Equations
Ninth graders solve basic equations. In this algebra activity, 9th graders solve linear equation using addition, subtraction, multiplication and division. They solve two step equations isolating the variable and putting the equation in...
EngageNY
A Surprising Boost from Geometry
Working with imaginary numbers — this is where it gets complex! After exploring the graph of complex numbers, learners simplify them using addition, subtraction, and multiplication.
Curated OER
Domain: Operations and Algebraic Thinking
Practice basic operations for young mathematicians in fun ways! Using two decks of cards (Ace through 10 plus the joker), learners play "memory" by matching numbers that can be added to make 10 and writing number sentences. In another...
Curated OER
Matrices at the Speed of Light!
Perform operations using matrices in this algebra lesson plan. Middle schoolers add, subtract, and multiply matrices. Additionally, they solve systems of equations using matrices.
Curated OER
Number Problems
Students write equations for problems. In this number lesson, students add, subtract, multiply and divide numbers to solve for a variable. They rewrite word problems using algebraic symbols.
Curated OER
Investigating Linear Equations Using Graphing Calculator
Students investigate linear equations using the Ti-Calculator. For this algebra lesson, students graph lines and identify the different quadrants on a coordinate plane. They identify ordered pairs used to plot lines.
Curated OER
Weigh Out the Algebra
Young scholars solve linear equations. In this algebra lesson, students use manipulative's to see the steps taken when solving linear equations. They solve using addition, subtraction, multiplication and division.
Curated OER
Addition Polymerization: Preparation of Polystyrene Using Two Types of Initiators
Advanced chemistry classes compare the polymerization of styrene using two different initators: benzoyl peroxide and aluminum chloride. Once they synthesize polystyrene, they compare the two producet for melting point and density. There...
Curated OER
Solving Algebraic Expressions
Students simplify equations and expressions. For this algebra lesson, students add, subtract, multiply and divide as they solve expressions. They relate factoring to solving polynomials.
Curated OER
Quadratic Equations with Complex Coefficients
Students solve and graph quadratic equations. In this algebra lesson, students perform basic operation using addition, subtraction, multiplication and division. They compute the quadratic formula.
Curated OER
Problem Solving Model
Use a vocabulary chart to introduce math functions. The class defines a list of mathematical vocabulary terms on a worksheet, as well as completes equations and expressions. They examine word problems and practice transcribing them into...
Curated OER
Adding and Subtracting Integers
Students add and subtract integers. In this algebra lesson, students add, subtract, multiply and divide integers. They apply the properties of numbers as they solve equations.
Curated OER
Forces and Graphing
Middle schoolers analyze graphs to determine relationships between variables and rates of change. They determine the basic concepts about static reaction forces. They determine the slope and equation of a line.
Curated OER
Real Number System
Ninth graders discuss the real number system and its' properties. In this algebra lesson, 9th graders discuss rational, irrational, closure, real numbers and the distributive property of algebra. They solve problems using these...
Curated OER
Soil pH Effect on Germination of Specific Weeds
Students collect weed seeds from three varieties of weeds (knapweed, thistle, or toadflax, for example they may choose others in addition to the spotted knapweed.) They sterilize soil for thirty containers, plant seeds in sterile soil,...
Curated OER
Building Word Problems
Sixth graders study addition and subtraction facts. In equal groups, they play a race game to correctly solve addition and subtraction problems. Using a PowerPoint presentation, the teacher demonstrates how to write word problems and...
Curated OER
Visualizing Integers
Students create visuals on the TI Calculator to solve problems. In this algebra lesson, students perform basic operations with integers. They add, subtract, multiply and divide.
EngageNY
Equivalent Rational Expressions
Rational expressions are just fancy fractions! Pupils apply fractions concepts to rational expressions. They find equivalent expressions by simplifying rational expressions using factoring. They include limits to the domain of the...
Curated OER
Properties of Logarithms
Students explore the concept of logarithms. In this logarithms lesson, students discuss the logarithm properties. Students use linear functions as a basis to develop the logarithm properites by substituting log b and log a...
Curated OER
Diving, Flying, & Climbing
Students explore Boyle's Law. In this Boyle's Law lesson, students complete problems involving Boyle's Law. They examine the effects of Boyle's Law upon the human body. Students use the Internet to complete a lab activity.