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子曰:学而不思则罔.“罔”即迷惑而没有所得,其意是说学习时应注重反思,数学的学习更应如此.数学教育家弗赖登塔尔也指出:反思是数学活动的核心和动力.我们不仅要低头做题,更应该经常抬头反思.那么,从哪些方面着手反思呢?笔者作了以下尝试:一、对例题变式的反思执教多年来,笔者发现许多教师在讲解例题时追求速度,对数学知识的处理比较单一,就题论题的情况比较普遍,不能对问题进行引申、拓展和演变,不善于帮助学生识别数
Confucius said: learning and thinking is indiscriminate. “Indispensability ” that is confused without income, meaning that learning should focus on reflection, mathematics learning even more so .Fredettal mathematics educator also pointed out: reflection Is the core of mathematics activities and motivation.We not only have to bow to do the question, but should often look up to reflect.However, from what aspects of reflection? I made the following attempt: First, the paradigm shift reflective coach Over the years, I found Many teachers pursue speed when explaining the examples and handle the maths knowledge relatively unilaterally. The situation of the topics is generally prevalent. They can not extend, expand and evolve the problems, and are not good at helping the students to identify