Category: 纯粹教育

可汗学院相关链接 二进制手指舞（趣味奥数）Binary hand dance https://www.khanacademy.org/math/math-for-fun-and-glory/vi-hart/singing/v/binary-hand-dance 二进制和数据（计算机科学）Binary & data https://www.khanacademy.org/computing/computer-science/computers-and-internet-code-org/how-computers–work/v/khan-academy-and-codeorg-binary-data 进制介绍（代数）Number systems introduction https://www.khanacademy.org/math/algebra-home/alg-intro-to-algebra/algebra-alternate-number-bases/v/number-systems-introduction

可汗学院相关链接 魔法六角变形体（趣味奥数）Hexaflexagons https://www.khanacademy.org/math/math-for-fun-and-glory/vi-hart/hexaflexagons/v/hexaflexagons 魔法六角变形体 2（趣味奥数）Hexaflexagons 2 https://www.khanacademy.org/math/math-for-fun-and-glory/vi-hart/hexaflexagons/v/hexaflexagons-2