论文部分内容阅读
教材分析本节课是中考前的一堂复习课,内容是苏科版九年级上册第十三章《简单机械功》的第二课时.在本节课教学过程中,笔者通过“搬水桶”这一活动将功、功率、机械效率三大块的知识点串起来,用生活中的实例说明功产生的条件以及功和功率的含义,并通过各种效率的计算,了解提高机械效率的途径和意义,培养学生在生活领域中解决实际问题的能力.
Textbook analysis This class is a review before the exam, the content is the Suke version of the ninth grade on the thirteenth chapter “simple mechanical power” of the second class.In this lesson teaching process, the author through the “ ”This activity will be power, power, mechanical efficiency of the three major chunks of knowledge together, with examples of life to illustrate the conditions of work and the meaning of power and power, and through a variety of efficiency calculations to understand how to improve mechanical efficiency The way and significance of students in the field of life to solve practical problems.