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在中学数学教学中 ,重视课本例习题的探究 ,引导学生多方位、多角度思考问题、分析并提出问题 ,把学习数学的主动权交给学生 ,是培养创新意识和创新能力的重要途径 .本文通过《立体几何》中一道典型习题的研究 (拟编、变形、引伸 ) ,对立体几何中的射影、角和距离、面积和体积
In middle school mathematics teaching, the emphasis on the exploration of textbook examples, guiding students to think multi-facetedly and multi-anglely, analyzing and proposing problems, and giving students the initiative to learn mathematics are important ways of cultivating innovation consciousness and innovation ability. Through the study (prototyping, deformation, extension) of a typical problem in “Solid Geometry”, the projective, angle and distance, area, and volume in three-dimensional geometry