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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,却是一座宝山,值得深入挖掘;虽是一棵老树,
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 whether general methods and laws can be found; Etc. The following entrance exam questions, although common, but it is a Baoshan, it is worth digging; although it is an old tree,