纵观近几年各类考试,有一种几何画图题,犹如一道亮丽的风景,从注重考查基本的尺规作图,发展到基于具体问题情境中运用无刻度直尺的几何画图,引领广大师生从几何直观及推理的角度审视与思考相关的几何图形、几何背景,酝酿与构建相关图形的形状、位置与大小关系.现就这类试题的考查形式、试题特点,与大家共同探讨.1.在网格中构建相关概念.例1如图1,正方形网格中的每个小正方形边长 Throughout the various types of exams in recent years, there is a geometric drawing, like a beautiful landscape, from focusing on examining the basic rules of the map, the development of specific problems based on the situation without the use of ruler geometry drawing, leading the majority of teachers Students from the perspective of geometric intuition and reasoning perspective and thinking related geometry, geometry background, brewing and building related to the shape of the shape, location and size of the test papers are now on the test form, test questions, to discuss with you .1 Build related concepts in the grid Example 1 As shown in Figure 1, each small square side of a square grid