What Time Is It? - match the times on digital and analog clocks (Primary)
Virtual Manipulatives - interactive activities complete with lesson plans for teachers (Primary, Junior, Intermediate)
Magical Metric Madness: Learn the Metric System on Line with Mr. Light Bulb Self-instruction "packages" on Metric Prefixes, Length, Volume, Mass (Junior, Intermediate)
The Maths File Game Show from BBC Education - requires the Shockwave 7 (Junior/Intermediate)
Project Interactivate - Activities that Practice Geometry and Measurement Concepts - The activities are designed for either group or individual exploration for topics such as basic notions of lines, rays and planes, working with tessellations, fractals. The activities are Java applets and as such require a java-capable browser. (Junior/Intermediate)