【正文】
集體備課 個人備課 Step One: Show the preview works (text books and notepaper) in layers. (5m) Teacher: 1. Draw a check table on the blackboard. 2. Watch the students and guide them to do better. 3. Show the aims for students to choose. (At the same time, students step into the second step slowly, some by some.) Step Two: Learn by themselves. (20m) Students: 1. Choose learning aims. 2. Learn the new content. Gather questions. Step Three: Discussion (5m) Talk about the proble