在课堂教学中,如何让学生在透彻理解知识的同时能够灵活应用所学的知识?本文以立体几何中的“平行与垂直”教学为例,提出几点教学建议,供同行参考。1理清知识的来龙去脉对于一个新知识的学习,应该使学生弄清3个问题:(1)它是什么?(2)有什么用?(3)怎么用?只有明确这些问题,学生才能实现对所学知识的牢固掌握及灵活应用。例如,空间垂直关系:问题(1)空间垂直关系包括线线垂直、线面垂直、 In classroom teaching, how to make students apply the knowledge flexibly while thoroughly understanding the knowledge? In this paper, taking “parallel and vertical” teaching in solid geometry as an example, some teaching suggestions are put forward for peer reference. 1 Clear up the context of knowledge For a new knowledge of learning, students should be made clear 3 questions: (1) What is it? (2) What is the use? (3) how to use? Only clear these issues, students can achieve The knowledge of the firm grasp and flexible application. For example, the vertical relationship of space: Problem (1) The vertical relationship of space includes the line vertical, the line vertical,