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函数是初中数学的重要内容,也是学好高中代数和解析几何的基础,学习函数知识更可以培养学生观察问题,研究问题和解决问题的能力,提升数学思维,因此学好函数非常重要.函数类的题目涉及几何知识,实际应用知识以及代数计算等知识,其解题方法灵活多变,汇集了配方法,换元法,待定系数法,数形结合,分类讨论等数学方法,综合性较强,因此备受中考出卷老师的青睐,每年在中考试卷中所占分值大约可以达到30%.所以熟
Function is an important part of junior high school mathematics, but also to learn high school algebra and analytic geometry foundation, learning function knowledge can also train students to observe problems, research problems and problem solving skills, improve mathematical thinking, so learning the function is very important. Involving knowledge of geometry, knowledge of practical application and knowledge of algebraic computation, the method of solving problems is flexible and brings together mathematical methods such as matching method, substitution method, undetermined coefficient method, combination of number and form, classification and discussion, and so on. Therefore, Much favored by the teacher in the test papers, the annual test scores in the examination paper can reach about 30%, so cooked