在研究工作中,发现中学生在化学计算问题中经常使用一些错误的概念,从而产生一些典型的错误结果。我们研究工作的目的是为了帮助教师和学生了解这一情况。 一、研究方法 研究工作主要通过下列三种方法进行: 1.书面测验的方法: 请学生解答一些化学计算题,并要求学生写清楚选择某答案的过程。采用这种方法测验的中学生,在西德约有几千名。 2.口试: 即和学生交谈,目的是进一步弄清学生解 In the research work, it was found that middle school students often use some wrong concepts in the problem of chemical calculations, resulting in some typical erroneous results. The purpose of our research work is to help teachers and students understand this situation. First, research methods Research work mainly through the following three methods: 1. Written test method: Ask students to answer some of the chemical calculation questions, and ask students to write a clear choice of an answer process. There are about a thousand students in West Germany who use this method to test. 2. Oral test: Ie talking with the student, the purpose is to further understand student solutions