A nice tutorial on using the addition property of equality. Provides 4 different example problems that are worked through step-by-step and also provides some practice problems.

Seventh graders use the multiplication property of equality to justify their solution to a ratio problem.

[Free Registration/Login may be required to access all resource tools.] This study guide reviews proofs: algebraic proof, properties of congruence, and geometric proofs (two-column).

After finishing this tutorial, you'll be well versed in various properties of real numbers: identity and inverse properties, commutative and associative properties, and distributive properties. You'll also know about the various symbols...

A 36-page booklet of activities and experiments for exploring the properties of and nature of light. Includes a section on careers in optics. As this is a Girl Scouts booklet, it was created with girls in mind, but would be equally...

After completing this tutorial, you'll know what a linear equation is and how to solve one using various arithmetic properties. Contains several definitions, problems with step-by-step solutions, and practice exercises. Includes links to...

Sixth graders work with the concept of equality and balance to solve one and two-step algebraic equations.

Through this tutorial, which offers step-by-step examples, video explanations, and practice questions, you'll learn what linear equations are and how to solve and classify them.

In this activity, students investigate the properties of a heterogeneous mixture, trail mix, as if it were a contaminated soil sample near a construction site. This activity shows students that heterogeneous mixtures can be separated by...

Learn about kites with this handy reference guide. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.