Curated OER
Writing Variable Expressions for Physical Models
Explore the concept of writing variable expressions by examining the similarities between expressions with numbers and expressions with variables. Emerging mathematicians determine rules for sequences and patterns before writing a rule...
Curated OER
Linear Equations & Manipulatives
High schooler math students review operations and solve linear equations using manipulatives--squares, cubes, circles, and cups. They transfer the operations performed on the manipulatives in equation form.
Utah Education Network (UEN)
Solving Single-Variable Equations Part II
Brainiacs explore the concept of solving single-variable equations.They use inverse operations to solve equations, and participate in activities such as balancing an equation scale. This is an awesome lesson plan, complete with game...
CK-12 Foundation
Simplify Sums or Differences of Single Variable Expressions: Addition and Subtraction of Like Terms
Investigate the process of combining like terms using an interactive animation. Scholars tackle simplifying expressions by manipulating rectangles that represent the terms. They add and subtract terms to arrive at the result.
Curated OER
Equations Lesson 1
Middle schoolers engage in a study of equations and how they are solved using algebraic methods. This overrides the fact of guessing as done in earlier grades. They cover the concept of inverse operations as the main way to manipulate...
Utah Education Network (UEN)
The Distributive Property For Numerical and Variable Expressions
Collaborate to research and share. Doesn't that sound great? Learners explore algebraic expressions, use Algeblocks to examine and compare numerical and variable expressions, and apply the distributive property. Examples and worksheets...
Curated OER
TIMS, The Bouncing Ball: Math, Science, Measurement, Graphs, Variables
Learners determine the exact relationship between the height from which a ball is dropped and the distance that it rebounds.
Virginia Department of Education
Solving Equations
Demonstrate the abstract process of solving equations by using algebra tiles as a concrete representation. Scholars begin by solving equations through the use of manipulatives. As they gain more confidence, they progress to whiteboards...
EngageNY
An Application of Linear Equations
Just how far will the Facebook post go? Lead a discussion on how to manipulate the sum of a geometric series to figure out a formula to find the sum at any step. The plan contains an alternative to the discussion with more accessible...
Mathematics Assessment Project
Shelves
Don't leave this task on the shelf — use it is assess middle schoolers understanding of patterns. Participants try to discover a pattern in the number of bricks and planks used to make shelves. They then match descriptions and equations...
CK-12 Foundation
Function Rules for Input-Output Tables: Soda Sugar Function Table
Examine the relationship between the input and output variables in a table of values. As learners build an input-output table using online manipulatives, they begin to identify patterns. They answer questions about these patterns and...
Utah Education Network (UEN)
Linear Relationships: Tables, Equations, and Graphs
Pupils explore the concept of linear relationships. They discuss real-world examples of independent and dependent relationships. In addition, they use tables, graphs, and equations to represent linear relationships. They also use ordered...
Curated OER
Best lesson in the whole world!
Middle schoolers study the concept of fraction using mathematical reasoning. In this problem solving fraction lesson, students use various methods to explain their reasoning in solving fractions. Middle schoolers use a number of...
Texas Instruments
TI-Nspire™ CAS
When it comes to rating educational calculators, this calculator is always near the top of this list. Now it's available as an app. There is a lot of calculator power wrapped up in this app. Not only is this a fully functioning...
Curated OER
Love Algebra?
Eighth graders, while in the computer lab, access a web site to help them utilize manipulatives of cups and tiles to develop the skills necessary to understand multi-step equations. They assess the relationship between cups and tiles and...
Curated OER
The Difference of 2 Squares
Students factor a difference of two squares. In this factoring a difference of two squares lesson, students use manipulates cut from a piece of paper to illustrate the difference of two squares. Students illustrate the concept by...
Curated OER
Three Squirrels and a Pile of Nuts
Middle schoolers solve story problems using a spreadsheet in combination with various problem-solving strategies. Working in teams of three, students create attempt to solve a story problem using three different methods; using...
Curated OER
He Came Out Of Nowhere!
Students calculate the traveled speed and distance of a robot. In this geometry instructional activity, students use the distance formula to manipulate and use to solve for the required variable. They calculate answers where two...
Curated OER
Seesaw Balances
Students determine how the weights of 7 objects on a seesaw can vary and still be in balance. They also write equations in algebraic terms, how to change 3 variables in an equation expressed in algebraic terms to obtain the correct...
Curated OER
Transforming Formulas
In this formulas worksheet, students transform and algebraically manipulate formulas for various variables. There are 5 multiple choice questions.
Curated OER
SHHH It's a Secret
Students rewrite word problems using expressions and equations. In this algebra lesson, students use the correct variable to solve and write equations. They use the TI to graph their solution.
Corbett Maths
Density
A short video introduces the triangle that illustrates how to find any value given the other two in the density formula. Class members use the triangle to work several problems to find the mass, volume, or density of an object.
Curated OER
Perimeters, Patterns, and Conjectures
Students discover patterns and write conjectures relating to perimeters and polygons. Working in cooperative learning groups, they use manipulatives and graphic organizers to solve problems then answer a series of questions in which they...
Virginia Department of Education
Algebra Tiles and Solving Equations
Young mathematicians solve linear equations by drawing models of algebra tiles using colored pencils. To finish, they solve the same equations algebraically and check their answers using a graphing calculator.