浅谈中学物理教学中演示实验的几个问题

Several Problems of Demo Experiment in Middle School Physics Teaching

在中学物理教学中，演示实验能激发学生主动发现问题，并通过思考、讨论来获得新知识．要做好演示实验，必须做到：选择最佳时机；实验力求明显直观；教师要精心准备和指导．

Demonstration experiments in middle school physics teaching help students discover and solve problems by themselves. Successful demonstration experiments require three points: selection of proper time, apparent and direct demonstration and good preparation and instruction..