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立体几何是研究立体图形的性质、线面位置关系的判定、画法、度量计算以及相关应用的学科,立体几何是高中教学中的重要内容。它对逻辑思维能力和空间想象能力都有较高的要求,要学好立体几何,就要从原来的知识结构和思维能力中解放出来,通过直观感知、操作确认、思辨论证,认识和理解空间图形及其性质,培养和发展基本能力。实际教学中由于学生没有很强的空间感觉,不能很好地处理平面和立体的关系,对错综复杂的空间点线面关系没有系统的认识。如何改善这种情况,通过几年的立体几何的教学,认为要善于在教学中抓住难点,强化模型教学;突出重点,培养学生画图、识图、用图能力;注重培养学生空间想象能力,逻辑思维能力,促进思维的发展。
Three-dimensional geometry is the study of three-dimensional graphics of the nature of the location of the line to determine the relationship, painting, measurement and calculation of related disciplines, three-dimensional geometry is an important part of high school teaching. It has high logical thinking ability and space imagination ability. To learn the solid geometry, we must liberate it from the original knowledge structure and thinking ability. Through intuitive perception, operational confirmation, speculative argumentation, understanding and understanding of space graphics And their nature, to develop and develop their basic abilities. Due to the fact that students do not have a strong sense of space in actual teaching, they can not handle the relationship between plane and solid well, and have no systematic understanding of the intricate point-space relationship of the space. How to improve this situation, through several years of teaching of three-dimensional geometry, that should be good at grasping the difficulties in teaching, and strengthening model teaching; highlighting key points, students drawing, knowledge map, the ability to use graphics; focus on training students spatial imagination, Logical thinking ability to promote the development of thinking.