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数学压轴题经常以其表述较长,涉及面广,条件多且错综复杂让学生望而生畏.压轴题一般都是代数与几何的综合题,很多年来都是以函数和几何图形的综合为主要方式,用到三角形、四边形、相似形和圆的有关知识,是对学生知识、能力的综合考察.在课本上多少都会出现这类题目的影子.下面,我们就以2017年陕西省中考第25题为例,来谈谈对数学压轴题的理解及教学思考.
Math Finale questions are often daunting for students because of their long presentation, extensive coverage, and many conditions and intricacies. The finale questions are usually comprehensive questions about algebra and geometry. For many years, they are mainly based on the synthesis of functions and geometry. To the triangle, quadrilateral, similar to the shape and the circle of knowledge, is a comprehensive study of students’ knowledge and abilities in the textbooks will appear on the number of these shadows.In the following, we will take the 25th exam in Shaanxi Province in 2017 as an example , To talk about the comprehension of mathematics finale and teaching thinking.