进入高中的学生,一般年龄在十五岁左右,在十多年的生活中已积累了不少生活经验,它们在物理教学中是不可忽视的。学生的生活经验,通常会有两种。一种是客观实际在学生头脑中的正确反映,这是真正有用的经验,它对物理教学无疑是有益的,可以借助它们讲清一些概念和规律,也可以免去一些不必要的演示实验。如关于光在同种均匀媒质中的直线传播问题,学生是有经验的,学生看到电影机射出的光是直进的。阳光从室外沿门窗缝隙射入室内光束是直进的。因此教师只要归纳一下学生已有的经验,即可得出“光在同种媒质里是直线传播的”这一结论,没有必要再用烟箱等实验来演示光 Students entering high school are generally about 15 years old and have accumulated a lot of life experience in their lives for more than a decade. They cannot be ignored in physics teaching. There are usually two kinds of student life experience. One is the correct reflection of objective reality in the minds of students. This is a truly useful experience. It is undoubtedly beneficial to physics teaching. You can use them to clarify some concepts and laws, and you can also avoid unnecessary demonstration experiments. For example, with regard to the problem of the linear propagation of light in homogenous homogeneous media, students are experienced. Students see that the light emitted by the movie projector is straight forward. Sunlight enters the indoor light beam from the outdoors along the gap between doors and windows and is straight forward. Therefore, as long as the teacher sums up the students’ existing experience, it can be concluded that “light is transmitted in a straight line in the same kind of media.” There is no need to use smokeboxes and other experiments to demonstrate light.