Interactive
Doina Popovici

Math Play: 4th Grade Vocabulary Game

For Students 3rd - 5th
Review important math words like composite, evaluate, degree, expression, improper, and intersecting with this review game.
Unit Plan
Math.com

Math.com: The Language of Algebra: Definitions

For Students 6th - 8th Standards
The resource investigates the algebra vocabulary. Detailed definitions, examples, and practice problems are included.
Unit Plan
Other

Mr. Perez Online Math Tutor: Solving Rational Equations

For Students 9th - 10th
The mathematics tutorial investigates how to simplify rational equations, find the least common denominator as well as how to solve rational equations. There are notes, examples and an interactive applet as well as a vocabulary puzzle.
Assessment
Oswego City School District

Regents Exam Prep Center: General "Transformation" Vocabulary

For Students 9th - 10th Standards
This site offers a short discussion of transformations. The discussion has few pictures and expresses the transformations in terms of relative coordinates rather than pictures.
Handout
Wyzant

Wyzant: Combining Like Terms

For Students 9th - 10th Standards
Provides a thorough step-by-step approach to combining like terms. Takes the student through important vocabulary used, as well as examples to help explain the topic. Several pages of notes are offered along with relevant links at the end.
Activity
Interactive Mathematics

Interactive Mathematics: Basic Algebra

For Students 9th - 10th
Interactive lessons are provided for many topics in algebra, including: laws of algebra, powers, roots and radicals, algebraic expressions, equations, and more. Use the links to navigate the tutorial and learn more focused concepts. The...
Handout
Wikimedia

Wikipedia: Additive Inverse

For Students 9th - 10th Standards
What is additive inverse? It means "opposite." Find out more about this concept in this detailed definition with examples and links to related terms.
Handout
University of Georgia

University of Georgia: Intermath Dictionary: Additive Inverse

For Students 3rd - 8th Standards
"What happens when you add opposite numbers together?" Understanding the additive inverse will help you to answer this questions. An explanation of additive inverse with examples and non-examples.