“认识面积”这节课是北师大版数学三年级的教材中的内容,属于空间与图形领域中的一课。对于三年级学生来说,面积的认识非常抽象,如什么是面积、面积的大小、面积与周长的区别等。在我们实际教学中学生的认知是个难点,不易突破。但陈淑珠老师在课堂上通过引导,不断地让学生体现、感悟,再体现、再感悟,来逐渐建构面积的认识符合新课标中“注重学生的学习过程”这一要求。通过感悟体现几何直观,模型思想,动手操作,小组合作探究的方法,引导学生充分感知面积,建构概念的过程,最后只是简单地出示面积这一概 “Know the area ” This lesson is the content of the third grade of the textbooks of Beijing Normal University edition, belonging to a class in the field of space and graphics. For third graders, the area of ​​awareness is very abstract, such as what is the area, the size of the area, the difference between the area and the circumference. The cognition of students in our actual teaching is a difficult task and not easy to break through. However, Chen Shuzhu teacher in the classroom through guidance, and constantly allow students to reflect, sentiment, and then reflect, and then sentiment, to gradually build awareness of the area in line with the new curriculum standard “pay attention to the learning process of students,” this request. Through the perception of geometric intuition, model thinking, hands-on, group cooperation explore ways to guide students to fully aware of the area, the concept of the process of building, and finally simply show the area this