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动点问题在近几年中考中频频出现,也是考查学生的思维能力、综合运用能力的一种常见题型.动点型问题一般从变换的角度和运动变化来研究常见图形或图象,通过“对称、动点的运动”等表现手法,来研究与探索图形性质及数量关系.我们知道,在“变化中寻找不变”是解决数学动点问题的基本方向,这也是数学动态问题最核心的本质.本文试借助具体实例谈谈此类问题的若干导向,望对大家有所裨益.导向1:抓住目标中的定性、定量关系,化动为静
In recent years, the question of moving point frequently appears in the test, but also to examine the thinking ability of students, the ability to use a common type of problem.Point-type problems generally from the perspective of transformation and movement to study common graphics or images, through “Symmetry, motion of moving point ” and other performance techniques to study and explore the relationship between the nature and quantity of graphics.We know that looking for invariance in “change ” is the basic direction to solve the problem of mathematical point, which is also the mathematical Dynamic problem of the core essence of this article try to talk about specific examples of such issues with a number of guidance, hope everyone benefits. Guide 1: to seize the target of the qualitative and quantitative relations, the move to static