本章由认知规律出发 ,以天、地、人三个主题向学生展示一个绚丽多彩的运动世界。从运动概念、运动探究、时间与长度的测量三个维度去进行运动速度的科学探究 ,让学生自己去构建 :包括运动、静止、参照物、运动的相对性、速度、匀速直线运动 ,变速直线运动等基本物理概念和知识 This chapter starts from the cognitive laws and presents students with a colorful and colorful sports world with three themes: heaven, earth and people. From the three dimensions of motion concept, movement inquiry, measurement of time and length, scientific exploration of the speed of movement allows students to construct themselves: including movement, stillness, reference, relative relativity of movement, speed, uniform linear motion, and speed-changing straight line Basic physical concepts such as sports and knowledge