“表面涂色的正方体”是小学数学苏教版新教材在《长方体和正方体》这一单元中,新增的一个实践活动课。在以前的教材中,这一内容只是以一道思考题的形式出现,教学目标只要学生把三面涂色、两面涂色、一面涂色的小正方体数清楚就可以了。但是新版教材提高了要求,不是只要学生统计棱长4厘米表面涂色的大正方体切割等分后各小正方体的涂色情况,还要利用学生已经学过的统计和归纳的知识,引导学生在想 “Color-coated cube ” is a new textbooks of primary school mathematics Sujiao version In the “cuboid and cube” this unit, a new practice activity class. In the previous textbook, this content only appeared in the form of a question of thought. As long as students painted three sides and painted two sides, the number of small squares painted on it was clear. However, the new version of the textbook raises the requirement not only if the student counts the coloring of the small cubes after cutting the large cubes of 4 cm edges, but also makes use of the statistical and inductive knowledge students have learned to guide the students in miss you