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随着教育教学工作的不断深入,我们在日常数学教学中,经常会发现按照正常逻辑顺序讲解的知识学生听得似懂非懂,这大大影响了教学效率更是浪费了宝贵的教学时间。而如果从问题的另一面入手,往往可以迎刃而解。而这种从问题另一面入手的方法,就是反例教学。
With the continuous deepening of education and teaching work, we often find that in accordance with the normal logical order, students in everyday mathematics teaching can understand and understand nonsense, which greatly affects the teaching efficiency and is a waste of valuable teaching time. If you start from the other side of the problem, you can often solve it. And this method of starting from the other side of the problem is counter-example teaching.