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1. Community
2. General Khan Academy Questions
3. The "Is Sal" Black hole badge

Probably not. It's probably a custom badge that was given only to Sal.

1. Community
2. Technical Issues and Workarounds
3. Getting the Cool Hopper from the Snowman challange

That's strange, as its description says "complete a coding challenge". Try checking for new avatars and badges (in profile under badge counts). If that doesn't work, you can send a support request.

1. Community
2. Content Requests and Feedback
3. Khan Academy, please FIX confusing mistakes in videos

I completely agree. It's confusing, and when an error that drastic is made (so that half of the calculation is completely wrong), a correction box doesn't suffice.

1. Community
2. General Khan Academy Questions
3. Pinning posts

Please pin my subpage thread: https://www.khanacademy.org/cs/i/4518766577827840

1. Community
2. Feature Requests and General Site Feedback
3. Too many post in a short amount of time

Never experienced this before, probably because I've only been on the community for a short amount of time, but I can appreciate how it must be annoying for people who help a lot.

1. Community
2. General Khan Academy Questions
3. Pinning posts

It's a thing only guardians can do, either you asked them or they noticed and pinned your sub thread.

1. Community
2. General Khan Academy Questions
3. Algebra course help

Sometimes courses share skills. The Get Ready for Algebra course may have shared a few skills with the Algebra 1 course, which could have caused units to appear already mastered. You can skip the o...

1. Community
2. General Khan Academy Questions
3. I found out how to get atlas, tesla and artemis badges

Is this truly how to get Atlas/Artemis? I've heard it's been confirmed by the KA team somewhere, but for the life of me I can't actually find where.

1. Community
2. News and Updates from Khan Academy
3. Content update: New TEKS-aligned 3rd and 4th Grade Math courses on Khan Academy

Hi,I noticed the TEKS 4th-grade math course doesn't have the course mastery interface enabled, only unit mastery. Is this intentional?

1. Community
2. Classroom Product Questions and Feedback
3. Useless restart button

Because of bonus questions. In a practice exercise, if you get one question wrong out of four, you can get a bonus question, and if you answer it correctly you'll get Proficient anyway. Thus, you d...