课前准备老师准备充足的教具，如自动旋转喷水罐、喷气式飞机模型、鞭炮等。要求学生自带气球、火箭帽、反冲玩具。２在玩中学，学中玩，激发学习兴趣介绍气球火箭的制作方法，指导学生动手制作气球火箭，并组织比赛活动，看谁做的气球火箭飞得高、飞得远。从一只火箭到几... Pre-class preparation teachers prepare ample teaching aids, such as automatic rotating spray cans, jet aircraft models, firecrackers and so on. Require students to bring their own balloons, rocket caps, recoil toys. 2 play in high school, learn to play, stimulate interest in learning introduced the production of balloon rocket, guide students to make balloon rocket, and organize competitions to see who made the balloon rocket fly high and fly far. From a rocket to a few ...