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一个物理难题,老师在黑板上讲了,但考试时,还总有许多学生做错。为了提高教学效率,我发现以“改错法”教学,效率最高。能以最少的时间,使更多的学生学懂,并牢固记忆。例如,我在讲“如图所示,斜面上物体,受与斜面成α角的牵引力F作用,求加速度”一题时,将摩擦力故意写成“f=μmg”。到此暂停,老师不语,等待学生检查改正。成绩好的学生看出来了,说应为:“f
A physics problem was taught by the teacher on the blackboard. However, there are always many students who make mistakes during the exam. In order to improve teaching efficiency, I found that the teaching of “correcting mistakes” was the most efficient. With more time, more students can learn and remember. For example, when I say “As shown in the figure, an object on an incline, subject to the traction force F at an angle α to the incline, ask for acceleration”, the friction force is intentionally written as “f=μmg”. Suspended this time, the teacher did not speak, waiting for students to check for corrections. The students with good grades saw it and said: "f