教学内容西师版义务教育课程标准实验教科书《小学数学》一年级(上册)第41～43页。教学目标1.通过情境图,引导学生结合已有的生活经验参与探究,体验连加连减的含义,掌握连加连减的计算顺序。2.经历观察比较过程,鼓励学生提出数学问题,培养学生初步的解决简单数学问题的意识和能 Teaching content The teacher version compulsory education curriculum standard experiment textbook “primary school mathematics” first grade (the first volume) the first 41 ~ 43 pages. Teaching Objectives 1. Through the situation map, guide students to participate in the existing life experience to explore, experience the meaning of plus and minus, to master the order of addition and subtraction calculations. 2 through observation and comparison process, encourage students to put forward mathematical problems, develop students’ initial awareness and ability to solve simple mathematical problems