First of all, guide children to observe the various situations of the subjects;

Next, guide children to think about the reasons and principles behind various phenomena;

Next, the teacher assists the child's thinking steps and guides the child to make assumptions and inferences logically and methodically;

Finally, the teacher once again took the children to experiment with the learning objects to test whether the previous assumptions were valid; If there are any mistakes, further improve the conclusion.

This process conforms to the cognitive law of human beings (including children of course), and teachers play a good guiding and auxiliary role in this process. In this process, children fully realize the continuous sublimation process of observation-thinking-summary-re-observation-re-thinking-re-summary! Teachers should not just instill it in children, so that children can memorize it, and their hands-on ability can be greatly improved!