学好数学,离不开解题.做完题、做对题,固然让人欣喜,但我们不能仅仅满足于解题的多少、单个问题的解决,还要善于解题前的分析、探索,更重要的是善于解题后的反思;反思得失、所用概念和原理,反思方法是否合理或可否优化,思路是否简洁自然或可否另辟蹊径,反思原题是否能拓展深化或可否找到一般方法和规律,等等.下面这道高考向量试题,虽然常见,却 To do a good job in mathematics can not be separated from a problem solving problem. Although it is detrimental to do the right questions, we can not just be satisfied with the number of problem solving, the solution to a single problem, but also the analysis, exploration and more What is important is that they are good at reflection after problem solving; what are the concepts and principles used in reflection and loss; whether the methods of reflection are reasonable or can be optimized; whether the thinking is concise or not; if there are any other ways to reflect the problem of whether the topic can be deepened or can be found; The following entrance exam questions, although common, but