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一、抓好孕伏阶段的教学1.在整数和小数教学中做好孕伏。分数应用题教学的孕伏,应该从一年级入学教育开始。要强调“谁比谁大,谁比谁小”……及谁和谁一一对应等。尤其要抓住谁是比较时的标准,为将来判断分数应用题中的单位“1”及其对应量做好孕伏。再如对认数“1”的教学,可以让学生一根一根地数小木棒,然后再一捆一捆地数,接着让学生列举用“1”表示的事物:一支钢笔、一筐苹果、一个班级、一所学校等,并且知道一个班级里有很多人,一
First, do a good job pregnancy section of the teaching 1. Intels and decimals in the teaching of pregnancy. Pregnancy test scores teaching, should be from the first grade entrance to education. To emphasize “who is bigger than who, who is younger than” ... ... and who and who one by one and so on. In particular, we must grasp who is the standard when compared to determine the scores in the future application of the unit “1 ” and its corresponding amount of pregnancy. Another example is the recognition of “1 ” teaching, students can be given a small number of sticks, and then a bundle of a bundle of land, and then let students enumerate “1 ” said: A pen, a basket of apples, a class, a school, etc., and knowing that there are many people in a class, one