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根据初中生自学能力较弱,抽象思维能力 和逻辑思维能力没有高中强的特点,笔者根据 多年的教学经验总结出初中生有必要进行一些 强化训练,有必要进行同类题目的精致练习． 这不仅仅是对该知识点的重复练习,也是使学 生真正掌握该知识点．本文就摩擦力这个知识 点,学生容易出现的错误,进行举一反三的练习 和学习． 例题 在自动化生产线上,常用传送带传 送工件．如图1所示,一个工件与传送带一起以 根据初中生自学能力较弱,抽象思维能力 和逻辑思维能力没有高中强的特点,笔者根据 多年的教学经验总结出初中生有必要进行一些 强化训练,有必要进行同类题目的精致练习． 这不仅仅是对该知识点的重复练习,也是使学 生真正掌握该知识点．本文就摩擦力这个知识 点,学生容易出现的错误,进行举一反三的练习 和学习． 例题 在自动化生产线上,常用传送带传 送工件．如图1所示,一个工件与传送带一起以
According to junior middle school students’ self-learning ability is weak, abstract thinking ability and logical thinking ability do not have the characteristics of high school and strong. Based on many years of teaching experience, the author concludes that junior high school students need some intensive training, and it is necessary to perform exquisite exercises on the same topics. This is not just a repetition exercise of this knowledge point, it also enables students to master the knowledge point. In this paper, the knowledge of friction and the mistakes that students are prone to carry out will be studied and studied. Example In an automated production line, conveyors are commonly used to transfer workpieces. As shown in Figure 1, a work piece and a conveyor belt are characterized by weak self-learning ability according to junior high school students, abstract thinking ability, and logical thinking ability which are not high school and strong. Based on many years of teaching experience, the author concludes that junior high school students need some intensive training. It is necessary to perform exquisite exercises on the same topics. This is not just a repetition exercise of this knowledge point, it also enables students to master the knowledge point. In this paper, the knowledge of friction and the mistakes that students are prone to carry out will be studied and studied. Example In an automated production line, conveyors are commonly used to transfer workpieces. As shown in Figure 1, a workpiece and a conveyor belt