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不少学生虽然做对了某题答案,但对该题所用的概念和规律未必真正掌握。教师若能对症质疑,把问题暴露出来,激发学生进入主动积极状态,引导学生的思维向纵深发展,通过师生讨论辨析,定会有助于学生深入理解所学物理知识并获得相应能力。练传统题的一次习题课竟建立了一个新的高级弹簧模型。题目:总质量为500千克的船上一个人手持绳子的一端,绳子的另一端拴在岸边的树上,从船静止开始,人用100牛顿的水平力拉绳,不计水的阻力,求此人在
Although many students do the right answer, the concepts and laws used in the question may not be truly grasped. If teachers can challenge the problem, expose the problem, inspire the students to enter an active state, and guide their thinking to develop in depth. Discrimination between teachers and students will help students understand the physics knowledge they have learned and acquire relevant abilities. An exercise class for practicing traditional problems has actually established a new advanced spring model. Title: A person with a total mass of 500 kg holds one end of the rope on the ship. The other end of the rope is tied to the tree on the shore. Starting from the stationary of the boat, the person pulls the rope with a horizontal force of 100 Newtons, without counting the resistance of the water. people at