My only problem with this site is that it has a black background and bright colors. For my son who has migraines, it is difficult to use for more than 5 or 10 minutes at a time. It would be better if the site had a white background. Besides that the website does a good job of explaining difficult math functions and providing extra math practice.
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Check out:Math Games: 180 Reproducible Activities to Motivate, Excite, and Challenge Students, Grades 6-12
