《倍数和因数》是人教版五年级下册的内容,作者采取适时渗透、灵活嫁接的策略,借助有质量的问题和有创意的学习情境,在一定的时空内调动学生的能动性,促使学生有意识地、自觉地去思考、去发现,从而打造了一节更具思维含量的数学课。打造高效课堂,促进有效学习,是小学数学教学永恒性追求。笔者在执教《倍数和因数》时,采取适时渗透、灵活嫁接的策略,让数学教学成为和谐的整体,成为充满情趣与生机的新天地。首先善假生活中关系的事例解读,灵活嫁接倍数、因数等知识的认识,让数学 The “multiple and the factor” is the content of the fifth grade of the PEP. The author adopts the strategy of timely infiltration and flexible grafting to mobilize the students’ motivation in a certain space and time with the help of quality problems and creative learning situations so as to urge the students Consciously and consciously thinking and discovering, thus creating a more thought-provoking math class. Building efficient classrooms and promoting effective learning are the eternal pursuit of primary school mathematics teaching. When coaching the “multiples and factors”, the author adopts the strategy of timely infiltration and flexible grafting so as to make mathematics teaching a harmonious whole and become a new world full of fun and vitality. First of all, the relationship between good and false life, case interpretation, flexible grafting multiples, factors such as knowledge, so that mathematics