《赛小车》教学与评析
2021-01-09朱晓琳吴睿文
朱晓琳 吴睿文
摘要《赛小车》是人教鄂教版《科学》三年级下册第五单元“物体的运动”的第三课。本单元主要从学生生活中常见的运动现象入手,引导他们开展一系列探究活动,认识运动的状态、形式,比较物体运动的快慢。在前两课描述运动、认识运动形式的基础上,本课引导学生通过研究小车的运动,认识运动与力之间的关系,比较运动的快慢,初步认识速度的概念。《赛小车》一课的教学设计,凸显了人教鄂教版《科学》教材的特点,能根据教学实际情况以及学生认知发展水平,对教材内容进行合理调整,以“赛小车”的活动任务为驱动,让学生认识到物体受力与运动变化之间的关系。本课教学以学生为主体,注重科学思维与学习习惯的培养,很好地达成了教学目标。
关键词 运动 力 速度 科学思维
中图分类号:G424文献标识码:ADOI:10.16400/j.cnki.kjdk.2021.24.008
Teaching and Evaluation of "Race Car"
ZHU Xiaolin[1], WU Ruiwen[2]
([1] The First Experimental Zhonghai Primary School, Changchun, Jilin 130033;
[2] Primary School Attached to Northeast Normal University, Changchun, Jilin 130021)
Abstract: "Race car" is the third lesson of unit 5 "movement of objects" in the second volume of grade 3 of Science published by Hubei Education Edition of people’s education. This unit mainly starts with the com? mon movement phenomena in students’ life, guides them to carry out a series of exploration activities, under? stands the state and form of movement, and compares the speed of object movement. On the basis of describing motion and recognizing the form of motion in the first two lessons, this lesson guides students to understand the relationship between motion and force, compare the speed of motion, and preliminarily understand the concept of speed. The teaching design of race car highlights the characteristics of "science" textbook of Hubei Educa? tion Edition of people’s education. It can reasonably adjust the content of the textbook according to the actual teaching situation and students’ cognitive development level. Driven by the activity task of "race car", students can realize the relationship between object force and movement change. The teaching of this course takes stu? dents as the main body, pays attention to the cultivation of scientific thinking and learning habits, and achieves the teaching goal well.
Keywords: motion; power; speed; scientific thinking
教學分析
《赛小车》是人教鄂教版《科学》三年级下册第五单元“物体的运动”的第三课。本单元主要从学生生活中常见的运动现象入手,引导他们开展一系列探究活动,认识运动的状态、形式,比较物体运动的快慢。在前两课描述运动、认识运动形式的基础上,本课引导学生通过研究小车的运动,认识运动与力之间的关系,比较运动的快慢,初步认识速度的概念。
本课内容主要基于课程标准中物质科学领域的两个主要概念:物体的运动可以用位置、快慢和方向来描述;力作用于物体,可以改变物体的形状和运动状态。具体的学习内容为:4.2通常用速度大小描述物体运动的快慢;……
