一、创境设疑,让学生自行确定研究的问题及方向 1.实物导入。教师出示学生十分熟悉的铁锅后问:这种铁锅在使用时有什么不方便的地方?让学生列举铁锅的种种弊端,并最终落脚到烫手上。 2.动画展示。多媒体出示书中“好烫”的画面,并问:看到屏幕上的情形,你会产生什么想法?让学生针对画面 First, the creation of a suspect, so that students determine their own research questions and directions 1. In-kind introduction. After the teacher shows the wok to which the students are very familiar, ask: What are the inconveniences when using such a wok? Let the students list all the disadvantages of the wok and finally settle on the hot hands. 2. Animated display. Multimedia shows the book's “Hot” screen and asks: What do you think of the situation on the screen?