自古希腊欧几里得以来,“演绎几何”便一直闪耀着理性思维的光芒.诚然,理性思维始终是中学数学教材体系和中学教师研究领域中的重要视角,但在多年未变的情况下,再经典的内容也会显得乏陈难述.好在新的课程标准应时之需对“立体几何初步”的几何定位、处理手段和设计方式等方面 Since the ancient Greek Euclidean arrived, “Dynamic Geometry” has always shined with the radiance of rational thinking. True, rational thinking has always been an important perspective in the middle school mathematics textbook system and secondary school teacher research, but in the case of years of change, Again, the classic content will appear to be difficult to describe. Fortunately, the new curriculum standards should be based on the geometric orientation, processing methods, and design methods of “preliminary three-dimensional geometry”.