中学数学中的一些命题、定理、结论,都是人们通过“观察———猜想———证明”而得出的。猜想是人们依据事实,凭借直觉所作出的一种大胆假设,它是一种积极的创造活动。在数学教学中,如果教师平铺直叙地直接给出结论,既会扼杀学生的创造性,又会使学生丧失学习数学的兴趣。因此, Some propositions, theorems, and conclusions in middle school mathematics are all derived from “observation, conjecture, and proof.” Guessing is a bold assumption made by people based on facts and intuition. It is an active creative activity. In mathematics teaching, if the teacher directly gives a conclusion in a straightforward manner, it will not only kill the student’s creativity, but will also make the student lose interest in learning mathematics. therefore,