论文部分内容阅读
一、设计思想1.对于光的反射定律的实验要力求准确完美,从而奠定这一节课的基础。在教学中,教师要引导学生清楚地观察反射光线与入射光线之间的关系,这对于让学生总结光的反射定律至关重要。虽然实验中误差不可避免,但因为要研究角的定量关系,因而实验的准确度对于学生而言异常重要。2.树立学生正确的空间感。由于光的反射定律最终展现给学生的是纸面上的光路,如果课堂上不引导学生观察,学生很容易形成错觉,形成光现象都是在平面内
I. Design Ideas 1. Experiments on the law of light reflection should strive to be accurate and perfect, thus laying the foundation for this lesson. In teaching, teachers should guide students to clearly observe the relationship between reflected light and incident light, which is crucial for students to sum up the law of light reflection. Although the error in the experiment is unavoidable, the accuracy of the experiment is extremely important to the student because of the quantitative relationship of the angle. 2. Establish a correct sense of space for students. As the law of light reflection ultimately reveals to students the path of light on the surface of the paper, if students are not guided to observe in the classroom, students can easily create illusions, and the phenomenon of light formation is in the plane.