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最小公倍数是“数的整除”这一单元的重点,也是教学的难点。教材对这一内容的阐述比较抽象,推理性强,学生不易理解。根据教材的内部联系和学生思维的特点,根据以学为主的原则,我设计并采用下面的教法。一、用列举法求最小公倍数。首先让每个学生在自备的玻璃片上,从小到大,顺次写出4的6个倍数和6的6个倍
The least common multiple is the key point of the “divisibility of numbers” unit, which is also the teaching difficulty. Teaching material on this content is more abstract, reasoning strong, students do not understand. According to the teaching materials of the internal relations and the characteristics of student thinking, according to the principle of learning, I design and use the following method. First, use the enumeration method to find the least common multiple. First of all, let each student in their own glass, from small to large, in order to write 4 times 6 times and 6 times 6 times