一、单元教材分析1.教学内容本单元主要包括四部分内容:面积和面积单位,长方形、正方形的面积计算,面积单位之间的进率,运用知识解决问题。2.学情分析通过前面的学习,学生已经认识了周长,已经掌握了长方形和正方形的特征,并会计算长方形和正方形的周长。对于面积,学生在生活中已经听说过,甚至拥有了一些模糊的经验性认识,例如:李家的房间面积大,张家的房间面积小等,但是还不具备面积 Unit Textbook Analysis 1. Teaching Content This unit mainly consists of four parts: area and area units, rectangular, square area calculation, the rate of area units, the use of knowledge to solve the problem. 2. Analysis of academic situation Through the previous study, students have known perimeter, have mastered the characteristics of rectangular and square, and calculate the perimeter of the rectangle and the square. For the area, the students have heard in life, and even have some vague empirical experience, for example: Li’s room area is large, Zhang’s room area is small, but does not have the area