Restart a challenge by opening it and selecting the reset option
To restart a course challenge on Khan Academy, open the challenge from your course page, then look for a reset or restart button—usually located near the top or bottom of the challenge screen. The exact location depends on whether you're on a computer or mobile device, but the process takes less than a minute. Once you restart, your previous answers are cleared and you begin the challenge fresh.
Khan Academy stores your progress separately for each challenge attempt, so restarting does not delete your course history or affect other work you've done. You can restart a challenge as many times as you need, and each attempt is tracked independently.
Key Takeaways
- Open the challenge from your course page and look for a reset, restart, or try again button on the challenge screen itself.
- Restarting clears only that single challenge attempt—your overall course progress and other completed work remain unchanged.
- On a computer, the reset option usually appears at the top right or bottom of the challenge; on mobile, swipe or scroll to find it.
- You can restart a challenge unlimited times, and Khan Academy tracks each attempt separately so you can see your improvement.
Finding the restart button on a computer
On a desktop or laptop, open your course and navigate to the challenge you want to restart. Click on the challenge title to open it. Once the challenge loads, look at the top right corner of the screen—you should see a three-dot menu icon (⋮) or a button labeled "Reset" or "Start Over." Click that menu and select the restart or reset option from the dropdown.
If you don't see a menu at the top right, scroll down to the bottom of the challenge screen. Some challenges display the restart button below the questions instead. The button may say "Reset Challenge," "Try Again," or "Restart Challenge"—the exact wording varies, but the function is the same.
Finding the restart button on a phone or tablet
On a mobile device, open the challenge the same way: go to your course, then tap the challenge title. Once the challenge is open, look for a menu icon (three dots or three horizontal lines) at the top of the screen. Tap it and select the restart or reset option.
If the menu is not visible at the top, try scrolling down to the bottom of the challenge. On some mobile versions, the restart button appears below all the questions. You may also need to scroll horizontally or swipe to reveal additional options, depending on your device and screen size.
What happens when you restart a challenge
When you restart a challenge, Khan Academy clears all your answers from that attempt and returns you to the first question. The challenge resets to its original state, as if you had never started it. Your score from the previous attempt is saved in your progress history, so you can see how you performed before and after the restart.
Restarting a challenge does not affect your overall course progress, your mastery level, or any other work you've completed. Only that single challenge attempt is reset. If you had earned points or badges from completing the challenge before, those remain in your account.
When to restart a challenge
Restart a challenge if you want to try it again after completing it, if you made careless mistakes and want another attempt, or if you want to practice the same material multiple times. Many students restart challenges to improve their score or to reinforce what they've learned.
You can also restart a challenge if you accidentally submitted answers too quickly or if you want to see the questions again without looking at your previous responses. There is no penalty for restarting, and you can do it as many times as you need.
Troubleshooting if you cannot find the restart button
If you cannot locate a restart button, first check that you have actually opened the challenge itself—not just the course page or a unit overview. The restart option only appears when you are inside the challenge, viewing the questions.
If you are inside the challenge and still cannot find the button, try refreshing the page or closing and reopening the challenge. Sometimes the interface takes a moment to load completely. If you are on a mobile device, try rotating your screen to landscape mode, which may reveal buttons that are hidden in portrait mode.
If the restart button remains unavailable after these steps, the challenge may be a type that Khan Academy does not allow to be restarted (though this is rare). In that case, you can move on to the next challenge or contact Khan Academy support through the help menu in your account settings.
Viewing your attempt history after restarting
After you restart and complete a challenge again, Khan Academy keeps a record of both attempts. You can see your score from each attempt by looking at your progress page for that course. This history helps you track whether you improved on your second try and shows you which questions you struggled with across multiple attempts.
To view your attempt history, go to your course page and look for a progress or history section. Some courses display a summary of all your challenge attempts in a list or table. Clicking on a specific attempt shows you the questions you answered and which ones you got right or wrong.
Frequently Asked Questions
Does restarting a challenge delete my previous score?
No. Khan Academy saves your score from every attempt. When you restart, your old score remains in your progress history, and your new attempt is recorded separately. You can see both scores if you look at your attempt history for that challenge.
Can I restart a challenge I have not completed yet?
Yes. You can restart a challenge at any point—whether you have finished it, are in the middle of it, or completed it long ago. straightforward open the challenge and select the restart option. Your current progress on that attempt will be cleared.
Will restarting a challenge affect my course grade or mastery level?
Restarting does not change your overall mastery level or course grade. Khan Academy tracks your best performance on each challenge, so restarting and scoring lower on your next attempt will not lower your grade. Your course progress is based on your highest score.
How many times can I restart a challenge?
You can restart a challenge as many times as you want. There is no limit to the number of attempts you can make. Each attempt is recorded separately, so you can see your progress over multiple tries.
What if I restart a challenge by accident?
If you restart by accident, your previous answers are cleared when ready. You cannot undo a restart. However, your old score is still saved in your history, so you have not lost that record. You can complete the challenge again or leave it and come back later.