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近几年的中考数学试卷,二次函数应用型试题在悄然增多,并且多以压轴题的形式出现.将生活中的实际问题转化为数学问题已经成为中考热点,这些试题不仅设计新颖、富有创意,而且是对学生的数学基础和数学应用的一大考验.由于题目较长,信息量大,很大一部分的学生在考场就容易出错,不能灵活应用数学知识解题.现对这类试题进行整理归纳,并举例评析.以现实生活为背景,设计应用问题,要求学生运用二次函数的知识与方法解决这些实际问题.
In recent years, senior high school entrance examination mathematics papers, applied quadratic function questions quietly increased, and more in the form of pressure axis problems will be turned into real problems in life has become a hot test, these questions not only innovative design, creative , But also a great test of the students’ maths and maths application.As a result of a long topic, a large amount of information, a large part of the students in the examination room is prone to error, can not be flexibly applied mathematics knowledge problem solving. In the background of real life, we design and apply the problem, and ask the students to solve these practical problems by using the knowledge and method of quadratic function.