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  2. Khan Academy - Wikipedia

    en.wikipedia.org/wiki/Khan_Academy

    Khan Academy is an American non-profit [3] educational organization created in 2006 by Sal Khan. [1] Its goal is to create a set of online tools that help educate students. [ 4 ] The organization produces short video lessons. [ 5 ]

  3. 3Blue1Brown - Wikipedia

    en.wikipedia.org/wiki/3Blue1Brown

    3Blue1Brown is a math YouTube channel created and run by Grant Sanderson. [6] The channel focuses on teaching higher mathematics from a visual perspective, and on the process of discovery and inquiry-based learning in mathematics, which Sanderson calls "inventing math".

  4. Completing the square - Wikipedia

    en.wikipedia.org/wiki/Completing_the_square

    Completing the square is the oldest method of solving general quadratic equations, used in Old Babylonian clay tablets dating from 1800–1600 BCE, and is still taught in elementary algebra courses today.

  5. Brilliant (website) - Wikipedia

    en.wikipedia.org/wiki/Brilliant_(website)

    Originally, Brilliant hosted a variety of individual puzzles and occasionally monthly challenges. At one point, the individual puzzles included their Problem of the Week, a selection of the 15 best puzzles for the week. [1] Currently, all of their content is housed within the problem-solving-based courses.

  6. Coin problem - Wikipedia

    en.wikipedia.org/wiki/Coin_problem

    Frobenius coin problem with 2-pence and 5-pence coins visualised as graphs: Sloping lines denote graphs of 2x+5y=n where n is the total in pence, and x and y are the non-negative number of 2p and 5p coins, respectively.

  7. Flipped classroom - Wikipedia

    en.wikipedia.org/wiki/Flipped_classroom

    Flipped classroom teaching at Clintondale High School in Michigan, United States. A flipped classroom is an instructional strategy and a type of blended learning.It aims to increase student engagement and learning by having pupils complete readings at home, and work on live problem-solving during class time. [1]

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