Khan Academy is a non-profit educational organization created in 2006 by educator Salman Khan with a goal of creating an accessible place for people to be educated. The organization produces short lectures in the form of YouTube videos. Its website also includes supplementary practice exercises and tools for educators. All resources are available to users of the website. The website and its content are provided mainly in English, but are also available in other languages like Spanish, Portuguese, Turkish, French, Bangla and Hindi.

Wikipedia
Khan Academy
Khan Academy
YouTube Video

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  • Subtracting 1 vs. subtracting 10 | Addition and subtraction within 100 | 2nd grade | Khan Academy
    Sal talks about the difference between subtracting 1 and subtracting 10. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-sub-ones-tens/v/understanding-place-value-while-subtracting-ones?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/...
Khan Academy
Khan Academy
YouTube Video

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  • Students, get started with LearnStorm
    Welcome to LearnStorm! LearnStorm is a free, six-week learning challenge from Khan Academy that celebrates learning and hard work at back to school. Check out www.learnstorm2017.org to find out more.
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Teachers, get started with LearnStorm
    LearnStorm is a free, six-week challenge to start the school year strong. By working as a class on Khan Academy, students develop the skills and learning mindsets they need for a successful school year while having fun and earning rewards for their class. Sign up at www.learnstorm2017.org starting on August 15th!
Khan Academy
Khan Academy
YouTube Video
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Adding and subtracting on number line 2 | 2nd grade | Khan Academy
    Sal adds and subtracts numbers like 585 and 368 using a number line. Numbers used in these problems are less than 1000. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-measurement-data/cc-2nd-measuring-length/v/measuring-lengths-2?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-grade-math/cc-...
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Addition using groups of 10 and 100 | 2nd grade | Khan Academy
    Sal rewrites addition problems to make them easier to solve. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-1000/cc-2nd-strategies-for-adding-two-and-three-digit-numbers/v/exercise-for-numberline-addition-and-subtraction?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-grade-math...
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Solving 3-digit addition in your head | 2nd grade | Khan Academy
    Sal shows some techniques for doing mental addition, such as making groups of 10 and 100. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-1000/cc-2nd-strategies-for-adding-two-and-three-digit-numbers/v/addition-using-groups-of-10-and-100?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/c...
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Breaking apart 3-digit addition problems | 2nd grade | Khan Academy
    Sal shows ways to break up addition problems using place value. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-1000/cc-2nd-strategies-for-adding-two-and-three-digit-numbers/v/rethinking-three-digit-addition-for-mental-calculation?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-g...
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Subtracting 3-digit numbers (no regrouping) | 2nd grade | Khan Academy
    Sal shows how to subtract 357-251 with place value. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-1000/cc-2nd-strategies-for-adding-two-and-three-digit-numbers/v/breaking-apart-three-digit-addition-problems?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-s...
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Adding 3-digit numbers (no regrouping) | 2nd grade | Khan Academy
    Sal adds 327 + 251 thinking about place value. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-1000/cc-2nd-sub-ones-tens-hundreds/v/subtracting-hundreds-and-tens?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-1000/cc-2nd-add-ones-tens-hundreds/v/ad...
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Missing numbers in addition and subtraction | 2nd grade | Khan Academy
    Sal solves missing number in problems like 73 = ___ + 57. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-1000/cc-2nd-add-ones-tens-hundreds/v/adding-ten-or-one-hundred?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-skip-counting/v/skip-...
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Addition and subtraction with number lines | 2nd grade | Khan Academy
    Sal figures out which number line matches up with a 2-digit addition or subtraction problem. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-add-100/v/adding-two-digit-numbers-without-regrouping?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subt...
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Strategies for adding 2-digit numbers | 2nd grade | Khan Academy
    Sal subtracts 35-8. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-math-strategies-for-adding-within-100/v/addition-using-groups-of-10-intro?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-sub-two-dig-intro/v/subtracting-two-d...
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Subtracting a 1-digit number with regrouping | 2nd grade | Khan Academy
    Sal subtracts 35-8. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-math-strategies-for-adding-within-100/v/addition-using-groups-of-10-intro?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-sub-two-dig-intro/v/subtracting-two-d...
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Subtracting two-digit numbers without regrouping (example 2) | 2nd grade | Khan Academy
    Sal subtracts 31 from 64 by thinking about tens and ones. Watch the next lesson: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-sub-two-dig-intro/v/regrouping-to-subtract-one-digit-number?utm_source=YT&utm_medium=Desc&utm_campaign=2ndgrade Missed the previous lesson? https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-add-subtract-100/cc-2nd-sub-two-dig-i...
Khan Academy
Khan Academy
YouTube Video
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • Solar and lunar eclipses
    Understanding solar eclipses and lunar eclipses. Why don't we have a solar eclipse every new moon (every time the Moon is between the Earth and Sun)? Why don't we have a lunar eclipse every time the Earth is between the Sun and Moon.
Khan Academy
Khan Academy
YouTube Video

New YouTube videos detected.

  • The Moon
    An introduction to the size of the Moon, the distance to the Moon, the relation of the 28-day cycle of the Moon to a month and understanding the phases of the Moon.
Khan Academy
Khan Academy
YouTube Video

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