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改变传统的教学方式,开展“以学生为主体、教师为主导”的课堂教学,加强实验,开拓学生思维,发展学生的能力是当前物理教学中需要研究和探讨的课题。我们抱着这一宗旨在高二《电磁感应》部分进行了单元性教改试验。经过充分准备以后,我们采用如下方式进行:一、变课本的演示实验为学生实验,让学生自己设计实验内容,边做、边想、边总结,从中“悟”出规律性东西在研究感生电流的条件这个问题时,我们把准备好的仪器发至每个小组。(仪器包括:蹄形磁铁一个,多匝较小矩形线圈一个,灵敏电流表一个,空心大线圈一个,开关一个,干电池一个)由学生先阅读课本“感生电流条件”一节,再根据现有仪器设计可组成那些实验来说明这个条件的。要求每人先提出方案,写成书面,然后教师带领全班进行讨论。大家摆方案,互相补充,把重复的删去,最后得出统一的实验方案,它大大超出了课本演示。其内容是:
To change the traditional teaching methods and carry out the classroom teaching of “taking the students as the main body and the teachers as the leading”, it is necessary to study and discuss the current physics teaching to strengthen the experiment, develop the students ’thinking and develop the students’ abilities. We hold this aim in the high school “electromagnetic induction” part of the unitary education reform test. After fully prepared, we use the following methods: First, the textbook demonstration experiment for students experiment, allowing students to design their own experiments, while doing, while thinking, while summarizing, from which “ Current conditions The problem, we sent the prepared equipment to each team. (The instrument includes: a magnet, a small number of turns of a small rectangular coil, a sensitive ammeter, a large hollow coil, a switch, a battery) by the students to read the textbook ”induced current conditions" section, and then according to the existing Instrument design can be composed of those experiments to illustrate this condition. Ask each person to propose the plan first, write in writing, and then the teacher leads the class to discuss. We put the program, complement each other, the repeated deletion, and finally come to a unified experimental program, which goes well beyond the textbook demonstration. Its content is: