我相信许多数学教师都会发现 ,不少学生虽然喜欢解题 ,但只考虑答案对否 .题目一旦获解 ,就会产生满足感 ,往往不愿意再回头看看 ,不愿望再想想这种解法是否最佳 ,还可以不可以改进 .忽视解题后的再思考 ,这是很可惜的事 ,因为这样恰好错过了提高的机会 ,无异于“入宝山而空手? I believe many mathematics teachers will find that although many students like to solve problems, they only consider whether the answer is correct. Once the topic is solved, it will produce a sense of satisfaction. It is often reluctant to look back, and it is not necessary to think about this solution again. Whether it is the best, or can not be improved. Ignore the re-thinking after the problem, this is a pity, because this just missed the opportunity to improve, is tantamount to "into Baoshan empty hand?