学生解答应用题最常见的错误是因数量关系没弄清而导致错解。如果以题论题，即使错题改对了，收效仍不大。用“还原”和“变式”的方法改错题，称得上是彻底纠错的方法之一。一、原题“还原”解题错误出在哪里？查找原因后改正过来仅仅是第一步。重要的是让学生弄清题目中... Students answer the most common application of the error is not clear because the relationship between quantity and lead to misunderstanding. If the title problem, even if the wrong title is changed, the effect is still not large. Use “restore” and “variant” method to correct the problem, be called one of the methods of thorough error correction. First, the original title “restore” problem solving mistakes where? Correcting it after finding the cause is only the first step. It is important for students to clarify the subject ...