定理教学无疑是《直线与平面》这一章中极为重要的内容,它的重要性不仅仅是由于定理的本身为整章的内容结构编织了坚实的网络而体现出来的知识价值,同时,更由于从定理的提出、寻找以及证明的思维过程揭示中,蕴含着丰富的思想性而反映出来的智力价值。因此,在定理的教学中,按照认识论的一般规 Theorem teaching is undoubtedly an extremely important part of the chapter “straight and flat”. Its importance is not only due to the fact that the theorem itself woven a solid network for the content structure of the entire chapter, but also reflects the value of knowledge. At the same time, Since the discovery of the theorem, the search for proofs, and the revealing of the process of the proof, there is a wealth of ideological values ​​that reflect the intellectual value. Therefore, in the teaching of the theorem, according to the general rules of epistemology