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“运动和力”教学单元(自然第三册),包括第十至十七、十九和二十课,共十课组成一个较大的教学单元。本单元的内容,介绍了普遍存在的自然力,如地球引力、太阳热力、风力、水力,间接出现的弹力、摩擦力。初步接触作用力和反作用力。普遍存在的运动形式是刚体运动和流体运动,水圈和大气圈层的运动。通过本单元的教学,应达到以下要求:1:认识各种运动与力之间的最基本的关系,认识几种常见的运动方式及其特点,能给这些运动
“Exercise and Force ” teaching unit (Nature Volume III), including the tenth to seventeenth, nineteenth and twenty lessons, a total of ten classes to form a larger teaching unit. The content of this module describes the ubiquitous natural forces such as gravitational, solar, wind, hydraulic, indirect elasticities and friction. Preliminary contact force and reaction force. Ubiquitous forms of motion are rigid body motion and fluid motion, hydrosphere and atmospheric layer motion. Through the teaching of this unit, the following requirements should be met: 1: Recognize the most basic relationships among various sports and forces, recognize several common sports and their characteristics, and give these sports