Aww this is so awesome! It goes to show that Khan Academy is for all ages! This is so encouraging to know that something that is helping me is also helping others! 

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2. Content Requests and Feedback
3. Thank you.. And new test prep idea?

For me, they are motivations for you to keep learning, just like the energy points. If you want to unlock an avatar, you work hard and answer a bunch of questions in order to earn points. Same with...

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2. Content Requests and Feedback
3. badges

That's a great idea!

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2. Content Requests and Feedback
3. Music Appreciation / Music History