“长方形面积的计算”设计思路藁城市通安街小学史香果陈凤彩“长方形面积的计算”是在学习了长方形的特征及其周长计算的基础上来教学的。学会长方形面积的计算，可以提高学生解决实际问题的能力，发展空间观念，并为以后学习其它平面图形的面积计算打下基础。本节课的教... “Calculation of rectangular area” design concept 藁 Tong'an Street Primary School Shi Xianguo Chen Fengcai “Calculation of rectangular area” is based on the study of the characteristics of the rectangle and the calculation of its circumference based on teaching. Learning to calculate the area of ​​rectangles can improve the ability of students to solve practical problems, develop the concept of space, and lay the foundation for the calculation of the area of ​​other plane graphics in the future. Teach this lesson ...