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【教学内容】人教版五年级上册第19、20页。【教学过程】一、创设情境、提出问题(出示小强所在的一行人)师:这是小强所站的队列,多整齐!你知道小强的位置吗?生:从左往右数第3个。生:从右往左数第4个。师:如果人再多一些(出现了一个方阵),从左往右数第3个仍然是小强吗?生:不是,从左往右数第3个的人太多啦,第一行、第二行、第三行……都有,要先从左往右数第3组,再从前往后数第2个。生:从右往左数第4组,从前往后数第2个。生:从右往左数第4列,从
【Teaching content】 PEP fifth grade Volume 19,20 pages. [Teaching process] First, create the situation, ask questions (to produce a small pedestrian where the line where) Teacher: This is the queue that Xiaoqiang stood, how neat! Do you know the location of Xiaoqiang? Health: No. 3 from left to right. Students: Number 4 from right to left. Teacher: If you have more people (there is a square), the number 3 from left to right is still Xiaoqiang? Health: No, the number 3 from left to right is too much. The first line, The second line, the third line ... ... have to, from the left to the right number of the first three groups, and then from the back number 2. Students: Number 4 from right to left, number 2 from front to back. Students: Number 4 from right to left, from