GeoGebra is a free mathematics software for all levels of math education and is a great tool for geometry and algebra.

This is a free website where high school and college students can sign up and use this to keep up with their assignments and when they are due. With each assignment you can manage tasks, save notes and attach files.

gives different question sets you can download to use for the SMART board in your classroom.

gives step by step how to do different algebra problems.

gives different worksheets to use for different math topics

gives examples of algebra problems for different algebra topics