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化学是一门以实验为基础的自然科学,化学实验教学以其本身科学、规范、严谨的特点,决定了它在培养学生能力及教学组织形式上都有别于理论课教学。要搞好化学实验教学应做到“一规”,“两性”,“三个结合”。一、确保规范操作中学化学实验要求学生做到基本操作正确而且规范。要达到这个目标,一方面教师在组织学生进行实验时要向学生交待清楚规范操作的标准是什么、操作时应注意哪些事项,如:给试管加热应先均匀加热,避免因试管受热不均匀而炸裂;组装实
Chemistry is a natural science based on experiments. Chemical experiment teaching, with its own scientific, standardized, and rigorous characteristics, determines that it is different from theoretical teaching in the cultivation of students’ abilities and forms of teaching organization. To do a good job in chemistry experiment teaching, we should do “one rule,” “two sexes,” and “three combinations.” First, ensure the standardized operation of middle school chemistry experiments require students to do the basic operation correctly and standard. To achieve this goal, on the one hand, the teacher should explain to the students when the students are organized to carry out experiments, what are the criteria for clear and standard operation, and what should be taken care of during operation. For example, heating the test tube should be uniformly heated to avoid uneven heating of the test tube. Burst; assembly