论文部分内容阅读
教学内容:人教版《义务教育教科书?数学》四年级下册第32~33页。教学目标:1.了解小数的产生源于需要,“数形结合”探究小数与分数、整数的内在联系,理解小数的意义,会用小数表示数轴上的点,认识小数的计数单位及相关进率,体会计数单位的拓展。2.通过分类、抽象、概括、推理等活动培养学生的思维能力,初步渗透数形结合思想和极限思想。3.体会小数与生活的密切联系,增强对数学的理解和应用数学的信心。
Teaching content: PEP “compulsory education textbooks? Mathematics” fourth grade volumes of the first 32 ~ 33 pages. Teaching Objectives: 1. To understand the generation of decimals from the need, “Number of forms with ” Exploring the internal relations between decimals and fractions, integers, to understand the meaning of decimals, decimal points will be expressed on the axis points, to know the counting unit and Related to the rate of progress, experience the expansion of counting units. Through the classification, abstraction, generalization, reasoning and other activities to cultivate students’ thinking ability, initially penetrating the combination of numbers and ideas and limit thoughts. 3. Experience the close relationship between the decimal and life, to enhance the understanding of mathematics and the confidence of applying mathematics.