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目前,立体几何入门教学的研究已在各地普遍开展起来,但是符合怎样的标准才能算得上成功的入门教学?入门教学有无时间的限制?怎样看待成功与失败的关系?这些问题不弄清楚,教学研究的科学性、实用性就得不到充分的保证。本文想从三个方面谈一点笔者的体会。一、开头失败未必不是好事。人们在做每一件事前总是期望一开始就非常成功,这给人以鼓励。但是人们常常忽略失败时激起的探索欲、求知欲给人带来的激励作用。在立几入门教学的最初阶段,学生要努力挣脱平面的束缚,开始在空间构思问题,还要克服空间图形允许“合理歪曲”给感知带
At present, the study of the teaching of solid geometry beginners has been carried out in various places, but what kind of standard can be regarded as a successful introductory teaching? Is there any time limit for the introductory teaching? What is the relationship between success and failure? These questions are not clear, The scientific nature of teaching and research can not be fully guaranteed. This article wants to talk about the author's experience from three aspects. First, the initial failure may not be a good thing. It is encouraging to always expect people to be very successful at the beginning before doing everything. However, people often ignore the motivational stimuli they bring when they fail. In the initial stages of establishing a few introductory lessons, students should work hard to break away from the shackles of the plane, begin to think in space, and overcome the spatial pattern to allow “reasonable distortion”