近日,我参加了一个市级小学数学新教材培训活动。活动上一位骨干教师执教的北师大版四年级上册“数图形的学问”这节课引发了大家的争论,其中不乏专家之间的认识分歧。事实上,细读教材内容和基本结构,我们会发现编者对这节课的教学目标定位是很清晰的:结合“鼹鼠钻洞”的情境,经历把生活中的现实问题抽象成数图形的数学问题,并利用多样化的画图策略解 Recently, I participated in a municipal primary school mathematics teaching materials training activities. Activities on a key teacher coached the Beijing Normal University version of the fourth grade on the book “number of graphics learning ” This section has led to everyone’s debate, many of whom lack awareness of experts. In fact, by reading the textbook and the basic structure, we find that the editors’ definition of the teaching objective of this lesson is very clear: In the context of “Mole Drill Hole,” we experience abstracting the real problems in life into numbers Graphic mathematical problems, and use a variety of drawing strategy solution