对小学数学教学而言,教给学生知识固然重要,但传授给学生知识获得的方法和技巧更重要,能使学生的智慧自由生长。为此,我尝试通过“倍数和因数”一课教学做创新尝试。“倍数和因数”一课,教材设计改变了以往传统教学冷硬、呆板的模式,摒弃逻辑推理的形式,代之以数学活动,充分体现课程标准中“自主建构”这一理念。课堂中,如何让学生从具体到抽象感知再到理解概念,建构倍数和因数的意 For primary school mathematics teaching, it is important to teach students knowledge, but the methods and skills imparted to students to acquire knowledge are more important, which can make the students’ wisdom grow freely. For this reason, I try to make innovations through the teaching of multiples and factors. “Multiples and factors ” lesson, textbook design changed the traditional mode of teaching cold, rigid, abandon the form of logical reasoning, replaced by mathematical activities, fully embodies the curriculum standard “self-construction ” concept . In class, how to make students from concrete to abstract perception to understand the concept of construction multiples and factors