【教学内容】义务教育课程标准实验教科书《数学》(人教版)二年级上册。【片段一】创设情境,引入新课(出示情境图:星期天,妈妈带小明去购物。他们在“好又多”超市挑选了一些生活用品)师:小明想和小朋友一起做个猜价格的游戏。猜一猜每件物品大约需要多少钱?(教师依次出示实物图,学生逐一猜测价格) 【Content】 compulsory education curriculum standard experimental textbook “Mathematics” (PEP) grade two. [Fragment one] to create the situation, the introduction of new lesson (to produce the situation map: Sunday, mother with Xiaoming go shopping. They are in the “good and more ” supermarket selection of some daily necessities) Teacher: Xiao Ming want to do with kids guess the price of the game . Guess about how much money each item requires? (The teacher in turn produces the physical map, the student guesses the price one by one)