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我校是一所农村中学,因受设备条件限制,有些学生实验做不了.为了加强直观教学,我比较重视演示实验(包括学生上台演示).下面谈一些体会. 激发兴趣活跃课堂兴趣是学生积极探究某种事物的认识倾向,是学习的一种动力,课堂教学中的演示实验,应该是激发学生学习兴趣的重要手段.例如,在初中化学硝酸钾熔化的导电性实验中,我用玻管(T形管加工而成)作为加热容器,
Our school is a rural middle school. Due to equipment restrictions, some students cannot do experiments. In order to enhance the intuitive teaching, I pay more attention to the demonstration experiment (including the students took the stage to demonstrate). The following talk about some experiences. Inspire interest Interest in active classroom is positive for students Exploring the tendency to understand something is a driving force for learning. Demonstration experiments in classroom teaching should be an important means of stimulating students’ interest in learning. For example, in the conductivity experiments of potassium nitrate melting in junior high school chemistry, I use glass tubes. (T-tube processed) as a heating vessel,