“学习是一个不断犯错误的过程,又是一个不断通过反复思考导致错误的缘由并逐渐消除错误的过程”.那么怎样减少错误呢?作者通过多年教学中对学生作业中的具体错例进行思考与研究,让学生解决实际问题时,做到认真审题、独立解题,及时纠正错误,科学建立并合理利用错题集,对解题方法进行总结. “Learning is a continuous process of making mistakes and a process of continually thinking through the causes of mistakes and gradually eliminating mistakes.” So how can we reduce the mistakes? The author, through years of teaching, makes specific mistakes in student assignments Make thinking and research so that when students solve practical problems, they should earnestly examine questions, solve problems independently and correct mistakes in time. They should scientifically establish and rationally use wrong title sets to summarize their solutions.