教材说明《光的直线传播》选自九年义务教育三年制初级中学教科书《物理》(人教版)第一册。设计理念本节课设计的一系列实验都与日常生活密切相关,使学生惊讶地发现日常生活中熟视无睹的事物及现象都蕴含着物理规律,启发学生关注自然,培养观察事物的能力。本节课采用边讲边实验的探究式教学,其目的除了让学生体验光的直线传播规律外,主要突出以学生为 Teaching material Description “Light of linear transmission” from the three-year compulsory education junior high school textbook “Physics” (PEP) first. Design Concept A series of experiments designed in this lesson are closely related to daily life. Students are astonished to find out that there are physical laws in their daily life which are ignored and that inspire students to pay attention to nature and cultivate the ability to observe things. In this lesson, we use the inquiry-based teaching that talks about the experiment. The purpose of the experiment is to make students experience the law of linear transmission of light,