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初中生物探究性对照实验中实验组和对照组的确定与区分,是学生错误率比较高的问题,又是生物教师之间争议不断的问题,究其原因是生物教材没有对探究实验中的实验组和对照组做任何界定,教师和学生对此还存在一些模糊的认识。巧妙利用实验变量来区分对照实验中的实验组和对照组,不仅简明而且准确。
The identification and differentiation of the experimental group and the control group in the junior high school biology exploratory control experiment is a problem with relatively high student error rate and a constant controversy among the biology teachers. The reason is that the biological teaching materials do not have any significance in the exploration experiment Experimental group and control group to make any definition, teachers and students there are still some vague awareness. Clever use of experimental variables to distinguish between experimental and control experiments, not only concise and accurate.