Jacques Chaumette

1. Cộng đồng
2. Feature Requests and General Site Feedback
3. Marking as unread feature request

Good idea, however a bookmarking system could also help.

1. Cộng đồng
2. Content Requests and Feedback
3. Energy Points

I think you should be awarded a low amount for explainatory material, e.g. articles and videos. The problem sets and unit tests should be the real source of energy points. After all, teachers in sc...