大学化学实验课程中有效数字的记录

On the Record of Significant Figures in the Course of College Chemistry Experiment

有效数字是大学化学实验课程的主要教学内容之一,是培养学生在课程中理解并在日常学习与工作中规范使用有效数字,提升其对有效数字与测定误差之间关系的认识水平,树立良好规范的数字记录习惯,具有十分重要的现实意义。论述介绍了目前大学化学实验教学中关于有效数字方面存在的主要问题,并采用相应的举措建立和完善了教学方案以利于更好地解决存在的问题。通过几个学期的教学实践发现新教学方案取得了初步的成效,同时严格按照有效数字的要求记录与计算数据也是培养学生具有严谨科学素养的一条重要途径。

Significant figures are crutial to experiment courses of college chemistry so that students could understand figures and be able to regulate significant figures in their daily learning and research work,and could know the relationship between numbers and effective measurement error,and could form good digital recording habits.Driven by the main problems about significant figures in experiment courses of college chemistry,This paper puts forward corresponding solutions to the problems,and establishes perfect corresponding teaching solutions which proved to achieve the initial goals.It is also an important way for students to strictly record and calculate data according to the requirements of significant figures in their researches.