一、引导学生探究怎样才能做好实验教材中有些实验,对学生而言,虽然看起来并不难,但要做好却并不容易。此时,把怎样才能做好实验作为学生的探究问题,就显得很重要了。例如《反冲》一课中让学生自带装过饮料的塑料瓶,扎孔让瓶下部流出几股水流,使瓶会转动的实验,许多学生须经几 First, to guide students to explore how to do a good job Experiment Some of the experiments in teaching materials, for students, although it seems not difficult, but to do it is not easy. At this point, it becomes very important to study how to do the experiment as a student inquiry. For example, in the “Backflushing” lesson, students bring their own plastic bottles filled with drink and pierced the holes to let the lower part of the bottle flow out several streams so that the bottle will rotate. Many students have to go through several