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苏科版物理九年级上册教材中的“观察扩散快慢与温度的关系”实验存在冷热水量不一致的情况,很容易误导学生的思维;而九年级下册中的“比较两个灯泡”实验在电流表量程的选择上存在问题。针对前一个实验设计缺陷,提出保持水量一致的改进举措;针对后一个实验设计缺陷,提出选用小量程电流表的改进举措。
Su Ke version of Physics ninth grade textbook teaching materials “to observe the relationship between diffusion speed and temperature ” there is inconsistency in the experiment of hot and cold water, it is easy to mislead the students thinking; the ninth grade in the next volume “compare two bulbs ”Experiment in the choice of ammeter there is a problem. Aiming at the defects of the previous experimental design, this paper puts forward the improvement measures to keep the water volume consistent. Aiming at the defect of the latter experimental design, this paper proposes the improvement measures of selecting the small-scale ammeter.