Giant Squid Gamer

1. Cộng đồng
2. Content Requests and Feedback
3. Adding courses from users, specifically for the programming section.

Thats a cool idea!  

1. Cộng đồng
2. Technical Issues and Workarounds
3. Avatars

Khan Academy has sadly removed backgrounds :( But I don't see why there is no save button for you as there is in the picture below. Some profiles require you to do a task as the one in the picture ...

1. Cộng đồng
2. General Khan Academy Questions
3. Mastery

If you go to your profile you can go to the section that says progress, and filter out mastery related work that you have done in a set time period. Hope this helps.

1. Cộng đồng
2. Classroom Tips and Tricks
3. should I send my child to khan academy?

What do you mean by send. As khan academy doesn't qualify as a school, and there is know building where they can go to. If you mean doing the courses on the site sure. Khan academy is a free open s...