"All of the best K-5 online, interactive, educational games and simulations in one place!
Look for NEW activities added for the 2013-2014 school year!"
A superb collection of cross curricular games, activities and other resources for younger children, including a great set of maths and English language games.
http://ictmagic.wikispaces.com/Cross+Curricular
Desmos is an online graphing calculator that allows the user to plot points, graph lines and parabolas. A variety of common algebraic functions are included with sliders, allowing the user to manipulate the data in real time and see the results of those changes. Students can also use it to create math art on coordinate grids.
This site helps students practise basic maths skills through short online exercises that are intended to be used each day. Teacher can get analysis of progress and more. Signing up a class is quick and easy.
http://ictmagic.wikispaces.com/Maths