教学片段《分数的基本性质》这节课从目标达成上去分析不只是要让学生理解和掌握分数的基本性质,还要让学生能熟练、灵活地运用分数的基本性质。所以当讲完分数的基本性质时,我就让学生做下面习题:如果59的分母加上27,要使分数的大小不变,分子应加上多少?几分钟后,多数学生回答 The Fragment of Teaching “The Basic Nature of Fraction” This Lesson Achieves Its Goals The purpose of analysis is not only to enable students to understand and grasp the basic nature of a grade, but also to enable students to apply the basic nature of a grade skillfully and flexibly. So when I said the basic nature of the score, I asked the student to do the following exercise: If the denominator of 59 plus 27, to keep the size of the score constant, what should be added to the numerator? After a few minutes, most students answered