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教材解析:《长方形和正方形的认识》是西师版小学二年级下册的教学内容,她上承于学生对长方形、正方形、平行四边形、直角的初步认识,为学生以后学习长方形和正方形的周长、面积计算以及长方体、正方体的特征搭设阶梯。目标预设:1.通过观察,大胆猜想,合作交流,自主探究长方形、正方形的特征,并能用自己的语言描述长方形、正方形的特征。2.使学生感受数学与生活的密切关系,激发他们学数学、用数学的兴趣。
Teaching material analysis: “rectangular and square understanding” is the second division of West division primary school teaching content, she inherited the students on the rectangular, square, parallelogram, rectangular angle of the initial understanding for students to study the rectangle and the square after the week Long, area calculations and the rectangular parallelepiped, the characteristics of the cube set up ladder. Objectives: 1. Through observation, bold guess, cooperation and exchange, self-exploration of rectangular, square features, and can use their own language to describe the rectangular, square features. 2. To make students feel the close relationship between mathematics and life, stimulate them to learn math, with mathematical interest.