I need help with
The Mastery System
- What is the mastery system?
- What do Khan Academy’s mastery levels mean?
- How does Khan Academy measure my math knowledge?
- How can I see which skills I’ve mastered?
- Can I choose which skills show up in my challenges?
- How does the mastery system help Khan Academy personalize my learning experience?
- Why do challenges sometimes contain skills I’ve already mastered?