We include these skills to help you review what you’ve learned and ensure that you remember it.
- If you answer multiple review questions on the same skill incorrectly, your mastery level may go down. The goal isn’t to penalize you; it’s to help you identify skills you may have forgotten so you can brush up on them.
- If you answer a review question correctly, you’ll see that skill less often in future challenges.
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?
How does the mastery system help Khan Academy personalize my learning experience?