Hello Jeffrey Green the rewind buttons are the arrows on the bottom right corner of your screen.

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Hello Dpetersenkc, unfortunately, Khan Academy doesn't have any courses for language, and doesn't plan on adding in the near future, it is recommended to learn and practice languages on sites such ...

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I don't remember how I received this badge.

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Hello Dongzhonggames I understand that failing a question can be stressful, but failing a question is supposed to motivate you to understand it better and try it again. Getting set back 2 questions...

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https://www.khanacademy.org/partner-content/wi-phi/wiphi-critical-thinking/wiphi-fundamentals/v/intro-to-critical-thinking  here are some courses for critical thinking. Happy learning!

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Hello Evan Lewis I never knew about this, thank you so much for your reply! Appreciate it.

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Hello caskew963 I see this as a great idea. I also agree that adding such magnificent calculators can be essential in school for preparing for SAT tests and etc, but such calculators are difficult ...

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3. Calculator

Thank you Grace  

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3. Is Khanmigo lying to me? Can I make my own tests and quizzes on Khan Academy???