本学期开学,我按例组织全市科学教师教材教法培训和示范研讨课观摩活动。在活动时,我进行四年级下册《摆》的示范研讨课。教材简析:《摆》是苏教版四年级下册三单元《物体的运动》第五课。本课与前面四课不同,从内容上看,前面的四课研究的是运动及其组成要素,即运动的判断、运动的速度、运动的方向、运动的方式。而本课,则是针对一种物体的具体运动进行较为深入的研究,并在 This semester begins, I organize the city’s science teachers teaching materials and teaching methods and demonstration seminars to observe activities. At the event, I conducted a demonstration seminar on “Putting Down” in the fourth grade. Teaching material analysis: “pendulum” is the fourth edition of the fourth edition of the Soviet version of “movement of objects” fifth lesson. This lesson is different from the previous four lessons. From the content point of view, the first four lessons are about sports and their components, namely the judgment of sports, the speed of sports, the direction of sports and the way of sports. This lesson, however, is a more in-depth study of the specific motions of an object