片段一:《空气影响物体的运动》课开始时,教师没有按照教材的固定程序导入,而是另外设计了一种思路。他从桌子里拿出一把伞,问道:“谁愿意上来为大家作一个小实验啊芽”这个导入一下子调动了学生的好奇心和兴趣。一个小个子学生上去了,老师首先要他空着手从讲台的左边跑到右边, Fragment one: “Air affects the movement of objects” At the beginning of the lesson, the teacher did not follow the fixed procedures for teaching materials, but also designed a different idea. He took an umbrella from the table and asked, “Who wants to come up with a little experiment for everyone?” This import suddenly mobilized students' curiosity and interest. A small student went up, the teacher must first he left empty hand ran to the right of the podium,