【教学内容】北师大二年级上册第53页。【课前思考】《1米有多长》是在学生学习了长度单位——厘米,对长度单位有了初步地认识后进行教学的。“课桌有多长”的学习为本节课做了很好地铺垫,此时再进行“1米有多长”的教学,学生的心理准备和知识基础都已具备。此内容的学习不仅要求学生掌握米和厘米的换算关系,更重要的是要让学生通过大量的测量或实践活动,体验1米的实际长度,建立对1米长度的感性认识,促进学生形成 【Teaching content】 Beijing Normal University second grade on the first 53 pages. [Thinking before class] “how long 1 meter” is the length of the unit in students to learn - cm, the length of units have a preliminary understanding of teaching. “How long the desk ” learning for the class to do a good job paving the way, then “1 meter how long” teaching, students’ mental preparation and knowledge base already have. This content learning not only requires students to master the conversion of meters and centimeters, but more importantly, to enable students to experience the actual length of 1 meter through a large number of measurements or practice activities to establish the perceptual awareness of 1 meter length and promote students to form