《宝石学现代测试技术》课程建设和教学方法探讨

Course Construction of “Gemmological Modern Testing Technology” and Discussion of Its Teaching Methods

中国地质大学(武汉)珠宝学院为本科生开设了《宝石学现代测试技术》课程,该课程的教学目的是让学生初步掌握现代宝石学研究技术和方法,对宝石学研究的专题问题提出自己的研究方案,具备一定的科学研究分析能力,以适应社会对宝石学专业人才的需求。宝石学现代测试技术课程按照32个学时讲课和16个学时实习划分成两大教学模块。采用多样化课堂教学方法,如提问式教学、分组讨论和分组报告等;采用多层次实验教学方式,如对精贵仪器注重送样及数据分析教学,对宝石学常用谱学仪器注重测试方法和动手能力训练;采用多元化成绩评定方法,最终课程成绩由课堂分组报告、实验报告和闭卷考试三部分成绩组成。新的教学方法取得了很好的教学效果,它调动了学生的学习热情,培养了他们的综合分析能力和合作精神,并初步培养了他们的科研能力和创新精神。

Because of the continuous development of new materials, new theories, and new technologies of gemmology, especially the advancement of gems synthesis and optimization technology, gemmology no longer is studied by traditional qualitative description of micro scopic phenomena, and becomes a study that needs a variety of modern testing technology and methods for quantitative analysis, microscopic and trace elements researches. Gemmo- logical institute of China University of Geosciences opens a ＂gemmological modern testing technology＂ course for undergraduate students. This course is a compulsory course for ＂gemmology and material technique＂ students, which is opened in the second term of the junior year. This course aims to let undergraduate students grasp the working principle and purpose of some large instruments which are common used in modern gemmological research （such as infrared spectrometer, Raman spectroscopy, electron microprobe, scanning electron microscope）, master the delivery methods and testing methods, and be familiar with data analytical methods of large instruments used in a variety of gemmological researches. Through the study of this course, students are expected to obtain basic ability of science research, and to have ability to put forward their own research program according to gemmological themat- ic issues. According to the teaching purpose of the course, the course is divided into two parts, classroom teaching and experiment teaching. The whole course has 48 class hours, including 32 class hours of classroom teaching and 16 class hours of experiment teaching. Classroom teaching is divided into five learning modules. They are introduction （2 class hours）, gem- mological spectroscopy analysis and application （14 class hours）, chemical composition anal- ysis and application （6 class hours）, micro-area and micro-observation analysis and applica- tion （4 class hours）, and other gemmological testing technology and application （2 class hours）. In addition, students＇ oral reports are arranged in classroom teaching （4 class hours）. Experimental teaching includes three parts, visiting teaching （4 class hours）, the instrument workshop （8 class hours）, and self-chosen experiments （4 class hours）. The course ＂gemmological modern testing technology＂ has difficult theories which make students feel very esoteric, boring and hard to understand. Therefore, it needs to use vari- ous classroom teaching methods, such as question-based teaching, group discussion and group reports, and use multi-level experimental teaching means, such as focusing on the de- livery and testing methods in previous instruments, the training of testing and practical abili- ty, and use different grading ways. For example, the final score is composed of classroom group reports, laboratory reports, and book-closed exam scores. New teaching methods of this course have mobilized the enthusiasm of students, developed their skills of comprehen- sive analysis and cooperation spirit. On the other hand, these methods can cultivate their re- search ability and innovation spirit. After teaching practice of several years, a very good effect of teaching have been achieved.