论文部分内容阅读
物理是一门以观察和实验为基础的学科,在实验中进行对比教学,是以实验操作和观察为基础,以实验现象为依据,对实验过程中所产生类似现象之间的差异进行对比分析的过程。在新人教版九年级《物理》(2012年修订版)教材中,同样一个电路设计在教材中安排了三个探究实验:一是第十七章第1节,“探究电流与电压、电阻的关系”实验;二是第十七章第3节,“伏安法测电阻”实验;三是第十八章第3节,“测量小灯泡的电功率”实验。通过教学实践发现,如果教师能在实验中利用电路图相同这个特点,进行对比教学,效果将明
Physics is a subject based on observation and experiment. Contrasting teaching in experiment is based on experimental operation and observation. Based on the experimental phenomena, the differences between the similar phenomena in the experiment are compared the process of. In the teaching material for the PEP 9th grade “Physics” (2012 Revised Edition), the same circuit design arranges three inquiry experiments in the textbook: one is Chapter 17, Section 1, “Explore Current and Voltage, The relationship between the resistance ”experiment; the second is the seventeenth chapter section 3, “ voltammetry resistance ”experiment; three is the eighteenth chapter section 3, “ measurement of small bulb electric power ”experiment. Through teaching practice found that if teachers can use the same circuit in the experiment this feature, the contrast teaching, the effect will be clear