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不少学生在小学时的数学成绩不错,可一到初中数学成绩就明显下降,甚至不及格。我们有很多理由来解释这种现象:知识难度加大;不适应中学的学习环境;课程增多等。其实,我们忽略了一个更重要的因素,那就是中小学数学教学内容衔接的不畅。经过多年的探索,对如何做好中小学数学教学内容的衔接,笔者有几点体会。一、数的过渡与衔接从小学到初中,数的概念在“算术数”的基础上扩充到有理数域,运算关
Many students have good grades in maths in primary school, and their math scores can drop significantly to the level of junior high school or even fail. We have many reasons to explain this phenomenon: the difficulty of knowledge increases; it is not suitable for the learning environment of secondary schools; the courses are increased and so on. In fact, we overlook a more important factor, that is, poor primary and secondary mathematics teaching content convergence. After years of exploration, how to do well in primary and secondary mathematics teaching content convergence, I have some experience. First, the number of transition and convergence From the elementary school to junior high school, the concept of number in the “arithmetic number ” based on the expansion to the rational number domain, computing off