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物理、化学、生物都是以实验为基础的学科。实验和动手操作是增强学生感性认识、启迪学生积极思考的主要手段。几年来,通过对各校学生实验技能考查,发现部分学生在实验中存在的主要问题:一是对仪器、药品使用中应注意的问题不明确。二是动手操作能力差,不按实验步骤,违规操作。针对这种情况,我认为教师在实验教学中,应做到以下几点:一、明确目的,讲清原理教师应在每次实验前都要求学生必须明确实验
Physics, chemistry, biology are based on experimental discipline. Experiments and hands-on exercises are the main means to enhance students’ perceptual awareness and inspire students to think positively. Over the past few years, through examining the experimental skills of students in various schools, we have found that some of the major problems that students have in the experiment are as follows: First, the problems that should be noticed in the use of instruments and medicines are not clear. Second, poor operating ability, not according to experimental steps, illegal operations. In view of this situation, I think that teachers in the experimental teaching, should do the following: First, a clear purpose, clarify the principle Teachers should require students before each experiment must be a clear experiment