Raqioth A'tlasyphoros Triabyssios

1. Communauté
2. General Khan Academy Questions
3. Badge Tiers

That's nice! :]

1. Communauté
2. General Khan Academy Questions
3. Mastery of classes?

You have to do Course Challenges, Unity Tests or Mastery Challenges

1. Communauté
2. General Khan Academy Questions
3. Badge Tiers

Hey! Challenge patches are specific to the course content, they do not follow the normal level from most common to rarest, which are: Meteor, Moon, Earth, Sun and Black Hole respectively.

1. Communauté
2. Study Group
3. Learning Routes

Now you have to Master Arithmetic and then Basic Geometry

1. Communauté
2. News and Updates from Khan Academy
3. Content update: Brand new high school physics and biology courses are here!

Thank you guys very much