How does Khan Academy measure my math knowledge?


On Khan Academy, there are two main ways to practice math skills and show what you know. These two are: practice tasks and challenges.


Practice tasks


Each practice task focuses on one specific skill. When you open a practice task on a skill, usually, your goal will be to answer five questions correctly. If you achieve this goal, you’ll “level up” from needs practice to practiced”.


However, you might see a different goal, depending on what our adaptive software has learned about your math knowledge.




Each challenge contains problems on a variety of skills. In general, when you answer a problem correctly in a challenge, your level of that skill will go up. If you answer several problems on the same skill incorrectly, your level may go down. Challenges help you level up quickly.

Challenges may contain skills you’ve practiced on Khan Academy as well as skills you haven’t. Most of these skills will be from your current mission.

  • For skills you’ve already practiced, our goal is to see whether you’ve retained this knowledge and know when you need to apply it.
  • For skills you haven’t practiced, our goal is to see whether you already know the concept or still need to practice it. If you don't know the answer, you can always click Skip for now or Move on after trying to answer the problem to go on to the next one.

There are different kinds of challenges, including mission warm-ups and mastery challenges. Each type of challenge has a slightly different format, but the overall goal of all challenges is the same: to assess your current math knowledge and recognize your progress!


See also:

The Mastery System
What is the mastery system?
What do Khan Academy’s mastery levels mean?
How can I see which skills I’ve mastered?
How does the mastery system help Khan Academy personalize my learning experience?


Last updated October 4, 2017

Images updated October 4, 2017

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