Common Fractions are one system we use to describe parts of wholes. Other ways of doing this are decimal fractions and percentages.

Visual Fractions Some easy to use activities for developing procedural knowledge of fractions.
Pattern Block Fractions - Not exactly interactive but great use of pattern blocks for developing fraction concepts.

Matti Fractions - Great interactive fraction activities at the Matti site. At K - 12 levels.

Last updated August 26, 2009