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我们知道,数学因为运动才充满了“活力”,而有关“动”的问题一直是教学中的难点,但由于这类问题涉及到的知识面广(例如,常与方程、函数、解直角三角形、勾股定理、图形的面积、全等与相似等知识相联系)、信息量大、综合性强,对于培养学生观察、发现、分析、归纳、探究与猜想等能力都有积极的意义,与此同时,新的课程标准增加的图形变换知识,更能体现对学生实践操作能力、空间想象能力的培养与考察,因此是近几年中考数学的热点问题,也往往是数学中考卷中的“压轴题”.
We know that mathematics is full of “vigor” because of the movement, and the question of “movement” has always been a difficult point in teaching, but because of the wide range of knowledge involved in such problems (for example, often with equations, functions, solutions to right angle triangles) , Pythagorean theorem, graphic area, equal and similar knowledge, etc.), large amount of information, comprehensive and strong, have a positive significance for students’ ability to observe, discover, analyze, summarize, explore and guess, etc. At the same time, the increased knowledge of the graphical transformation of the new curriculum standards can better reflect the training and examination of students’ practical ability and spatial imagination. Therefore, it is a hot issue in the mathematics of the middle school entrance examination in recent years, and it is often in the mathematics examination paper. Finale title."