Exploring Fractals is a complete project from the Department of Mathematics and Statistics at the University of Massachusetts at Amherst. The Great Penny Toss is an intermediate project which asks students at remote sites to collect probability data and submit it to a focus class of sixth graders. Student Math Mentors is a project which hooks up elementary students with high school math mentors. Math Molis a K-12 math and molecules project which ranges from visualizing molecules to complex calculations on molecular systems. Family Math is one of those projects which does not require more than initial online connectivity.
Families go together to a site to learn math games and activities to do at home.
The final project of note, MathMagic , was mentioned not only in Steve's Dump, but on multiple sites as I browsed around. Due to its high visibility, it became the case study. MathMagic MathMagic is a K-12 telecommunications project developed in El Paso, Texas. It motivates students to use computer technology while simultaneously incrasing problem-solving and communication skills. To get started, you will need access to e-mai l via Internet.