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构造法是一种灵活多变的运用数学的基本思想和解题方法,它没有固定的模式可以套用.在解题过程中,如果学生按照定向思维解决问题却解决不了,而构造法能够帮助学生经过认真的观察、深入的思考后,构造出解题的数学模型,并最终解决问题.一、构造法解题的原则学习数学不仅要求会解题,还要善于解题,而且在运用构造法解题时要遵循一定的原则.1.相似性原则相似性原则是指认真观察数学问题的条件,进行联想,
Constructivism is a flexible and basic method of applying mathematics, and it has no fixed pattern to apply.In the problem-solving process, students can not solve the problem if they follow the directional thinking, and the constructor can help students After careful observation, in-depth thinking, to construct a mathematical model to solve the problem, and ultimately solve the problem.First, the principle of construction method to solve problems Learning mathematics not only requires solving problems, but also be good at solving problems, and in the use of construction method Problem-solving to follow certain principles .1 similarity principle similarity principle is to carefully observe the conditions of mathematics, the association,