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数学本来就是研究数量及图形的特征、规律及其关系的一门学科,那么应用数形结合的方法解决数学问题就成了一种重要的解题方法,著名数学家华罗庚的一首诗对此有过精彩的描述:“数缺形时少直观,形少数时难入微,数形结合百般好,割裂分家万事休。”但是从教学实践看,学生在应用中仍然存在一些误区,下面对这一问题做一些分析。一、缺乏数形结合的解题意识
Mathematics has always been to study the number and characteristics of the graphics, laws and relations of a subject, then the use of mathematical methods to solve mathematical problems with the number of forms has become an important method of solving problems, a famous mathematician Hua Linggeng poem There are wonderful descriptions: “When the number of lack of shape less intuitive, shaped when a few are hard to find, the combination of all sorts of good shape, fragmented everything off.” But from the teaching practice, there are still some misunderstandings in the application of students, Here’s some analysis of this issue. First, the lack of combination of knowledge of problem solving