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《导体·绝缘体》一课是电路单元的重要课,每次教学总是从概念入手,观察导线的两部分分别是用什么材料做的,得出导体·绝缘体的概念,从而再去验证,如此教学,似乎很顺,但总觉牵着学生的鼻子,无法调动学生的积极性和激发学生的创造思维。于是,我采用探究、验证、再探究这三个环节,收到了很好的效果。一、合作探究,补充“残缺”的电路一上课,教师用轻松的口气要求学生进行组装一个有开关的电路的比赛,但每组少放一根导线。这样一来,
The “conductor and insulator” lesson is an important part of a circuit unit. Each teaching always starts with the concept of observing what the two parts of the conductor are made of, respectively, and derives the concept of a conductor and insulator to verify it again. Teaching, it seems very smooth, but always feel the student's nose, unable to mobilize the enthusiasm of students and stimulate students' creative thinking. So, I use to explore, verify, and then explore these three areas, received good results. First, the cooperation to explore and supplement the “incomplete” circuit First class, teachers with a relaxed tone Students are asked to assemble a circuit with the switch game, but put a little less wire per group. Thus,