Cool MathCool Math has free online cool math lessons, cool math games and fun math activities. Really clear math lessons (pre-algebra, algebra, precalculus)
Geometry Games - Four different applications reinforce geometry concepts by matching terms to the geometric shape, or with flashcards, word searches, or concentration games.
Geometric Solids This tool allows you to learn about various geometric solids and their properties. You can manipulate and color each shape to explore the number of faces, edges, and vertices.
Illuminations - The NCTM Principles and Standards for School Mathematics.
Integer Product Game Strategy game designed to allow students to practice multiplying integers.
Khan's Academy Help learning arithmetic and pre-algebra.
Locate the Aliens Practice coordinate graphing skills by locating aliens.
The Product Game Strategy game designed to allow students to practice multiplying whole numbers.
The Factor Game Strategy game designed to allow students to practice finding factors of whole numbers.
Math Baseball - Practice addition, subtraction, and multiplication skills with this online game. Skill level varies and 2 students can play at one time.
Math is Fun Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.
Magic Squares - Learn about the different magic squares by traveling throughout the world and through history. Explore further magic squares activities.
Measure It Practice reading metric and standard rulers.