在教学《分数的意义》时,我让学生说说怎样写一个分数,并说明理由。一位学生认为应该先写分数线,再从下往上写,他说:“分母表示平均分的份数,分子表示所取的份数,先有平均分的份数,才能有所取的份数,所以把平均分的份数叫分母,把取的份数叫分子,好像先有妈,后有儿子一样。”话 In teaching the meaning of scores, I asked students to talk about how to write a score and explain why. One student thinks that the score should be written first and then written from the bottom up. He said: “The denominator means the number of points in the average, the numerator means the number of copies taken, and the average number of points before it can be taken. Number, so the average number of copies is called the denominator, and the number of copies taken is called the numerator, as if there was a mother first and then a son."