论文部分内容阅读
光学演示实验是小学实验教学的重要组成部分,现行小学自然课本第五册有光、凸透镜成像,眼睛的科学等三节课,对光的直线传播、光的反射和折射、凸透镜的会聚、放大和成像等提出了一系列演示实验要求。 传统的小学光学演示箱是1978年《小学自然数学教学仪器配备目录》中老产品,在教学实践中主要存在下列问题:
The optical demonstration experiment is an important part of the experimental teaching in primary schools. There are three classes of light textbooks, convex lens imaging, and eye science in the primary textbook of the elementary school. It deals with linear propagation of light, reflection and refraction of light, convergence of convex lenses, and amplification. Imaging and other proposed a series of demonstration experiments. The traditional elementary school optical demonstration box is the old product in the 1978 “Equipment Catalogue for Natural Mathematics Teaching Equipment for Primary Schools”. There are mainly the following problems in the teaching practice: