任何一个数学概念都有它的产生、形成、发展的过程。在教学中,引进每一个新概念,都必须使学生感到是自然的,以至深信它的引进是必要的。这样才可以避免形式化的理解和刻板的记忆。因此,教师必须对每一个数学概念作深入的剖析。这里就整数的知识作一简单的介绍。 Any mathematical concept has its generation, formation and development process. In teaching, the introduction of each new concept must make students feel natural, and even convinced that its introduction is necessary. Only in this way can we avoid formal understanding and stereotyped memory. Therefore, teachers must make an in-depth analysis of each mathematical concept. Here for a simple knowledge of integer for a brief introduction.