This site links to the Math Forum site. Watch as the completed figure comes to life. A simple game to have chhildren work with mathmatical shapes. Concentration is especially nice. Skills include basic facts, counting coins, estimation, etc.
Teacher can input new facts to make new games.
There are even activities on money, rounding and integers. There are advanced problems to provide additional challenge. This site is math drill in all four operations, time, and money and can be used by different ages. Each week, Aunty Math gives students a new problem to solve. She will reply to e-mail explanations.