Open Math Reference

This site did what I envisioned about a decade ago. Math education tools: http://www.mathopenref.com which may revolutionize education. I am very impressed. I wish students all over the world can benefit from the demos. This certainly dwarfed my 30 or so demos in my Math Experiments app. My applets/activities are kinda crude compared to Math Open Ref. But I enjoyed the process of writing the apps and proud to say they are original.

But can excellent apps alone really revolutionize education? It is just part of the process. Parents should step in to help their kids...