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因为在中学化学教学过程中,实验课所占的份额较少,考试较为简单,学习压力不大,所以职高学生更容易对化学实验掉以轻心,不重视。这导致职高学生在上课时精神分散,影响化学实验的教学效果。正因如此,老师要特别对学生的化学实验进行周密的管理,对学生的化学实验成绩进行科学合理的评定。学生的化学实验总成绩由平时成绩(占70%)和考试成绩(占30%)两块组成,而平时成绩由预习成绩(占10%)、实验操作及违纪情况(占15%)、实验报告(占45%)组成,考试成绩由笔试(占10%)及操作(占20%)构成。
Because in the process of chemistry teaching in middle school, the experimental class accounts for a small share of the exam is relatively simple, little learning pressure, so vocational students more easily chemical experiments lightly, not valued. This leads to vocational school students distracted in class, affecting the teaching of chemical experiments. Because of this, the teacher should carry out careful management of the students ’chemistry experiment in particular, and make a scientific and reasonable assessment of the students’ chemistry experiment achievement. The students’ total score of chemistry experiment consists of two grades: normal grade (70%) and test grade (30%), while the average grades consist of preview grade (10%), experimental operation and discipline violation Report (45%), test scores by the written examination (10%) and operation (20%) form.