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物理小实验具有取材方便、制作简单、原理清晰、少时省力、模仿性强、效果明显等特点,对学生掌握知识、激发兴趣、启迪思维帮助极大,也为学生提供了多动手、多观察、多思考的机会.下面结合实例谈些看法.1 运用小实验,创设物理情景引入新课,提高学生的学习兴趣如在讲“力的分解”这节课时可用下面的小实验引入:取两根长约25cm的硬木条,中间用铰链连接,成人字型支架.再取两块硬木,加工成“L”形,弯处钉上铁皮,下面装有大号带钩螺丝(如窗钩).将一根铁丝两
The physical experiment has the characteristics of convenient material acquisition, simple production, clear principle, low time and effort, strong imitation, and obvious effect. It helps students to acquire knowledge, stimulate interest, and inspire thinking. It also provides students with more hands-on and more observations. More opportunities for thinking. Here are some examples to discuss: 1. Using small experiments to create physical scenes to introduce new lessons and improve students’ interest in learning. For example, in the lesson “The decomposition of forces”, the following small experiments can be introduced: Take two About 25cm long hardwood bar, the middle with a hinge connection, adult font bracket. Take two pieces of hardwood, processed into “L”-shaped, bent at the tin on the nail, the following with a large hook screw (such as window hook). One iron wire two