在数学里,数字与图形好像是互相没有关系的两个世界。可是,喜欢摆石子和玩积木的同学,在摆一摆、数一数的活动中,常常会有特别的发现:好像有的数和三角形、正方形……有联系呢。哇!祝贺你,你的发现和两千多年前古希腊大数学家毕达哥拉斯的发现是一样一样的。到底是哪些数字呢?看完故事你就知道了。 In mathematics, numbers and graphics seem to be two worlds that have nothing to do with each other. However, students who like to play pebbles and play with blocks often find a special discovery in the pendulum and countless activities: there seems to be a number associated with triangles and squares. Wow! Congratulations, your discovery is the same as that found by Pythagoras, the great Greek mathematician two thousand years ago. In the end what kind of numbers? Read the story you know.