I've been lurking for some time but finally cannot resist posting in this thread. I've been working alone for some time now on an education startup. It's basically a website with math notes and questions for students. I've noticed that educational software hasn't really changed much over the last 2 decades. I could really really use some proper critism/feedback. Link (only works properly on Firefox for now). Feedback

How would you have done it? What probability do you give it of succeeding? How should I proceed? Thanks!