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动态几何题是指以某种几何图形为载体,随着点、线、形中的某一元素的运动变化,从而引起图形的变化而形成新问题.这种问题中,几何图形的变化具有一定的规律性,有一些参量不发生变化成为解决问题挖掘的要素.这种问题常常与扇形知识结合在一起,形成一些阴影部分面积的试题,信息量大,涉及知识面宽、综合性强,解题时要用运动和变化的眼光去观察和研究问题,把握运动、变化和全过程,并特别关注运动与变化中的不变量、不变关系或特殊关系,动中取静,静中求动.综合运用数学、几何知识,用数形结合的数学思想使问题得以突破.
Dynamic geometric problem refers to a certain geometry as the carrier, with the point, line, the shape of a movement of elements of change, which led to changes in the formation of new problems in this problem, the geometric changes have a certain Some of the parameters do not change as the elements to solve the problem.This problem is often combined with the fan-shaped knowledge, the formation of some shadow area test questions, a large amount of information, covering a wide range of knowledge, comprehensive, solution Problems with the eyes of movement and change to observe and study the problem, grasp the movement, change and the whole process, with particular attention to the movement and the changing invariant, constant relationship or special relationship, moving in the static, static seeking By comprehensively applying mathematics and geometry knowledge, the problem can be broken through the mathematical idea of combining figures with form.