1. Go back to the textbook. We should learn to use the knowledge points in textbooks flexibly and learn to draw inferences from others.
2. Listen carefully. Change passive learning into active learning, and students should understand those knowledge points completely independently when the teacher lectures.
Do the problem carefully, don't aim too high. Students can't treat simple problems lightly and take simple math problems seriously, which not only familiarizes themselves with their body shape efficiently, but also exercises their computing ability.