A research of the Difference in Teaching Styles and Understanding of 9

Journal of the Korean Chemical Society

Sun-Ja Jeong¹  Seong-Hey Paik¹ 

关键词: Law of definite proportions;    Lead-Iodide precipitation reaction;    9th grade students;    Understanding of students;    Science teacher;    Teaching style;    Science textbook;    Experiment;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

In this study, the teaching methods of three science teachers for lead-iodide precipitation reaction experiment were compared. The difference of 9th grade students¡¯ understanding was searched according to the science teachers¡¯ teaching styles, also. Among the three teachers, Teacher A taught students based on the science textbook and allowed students to think themselves and to get out conclusion by the experiment. Teacher B and Teacher C gave students a lot of explanations related to interpretation of the experiment. The percentage of no response on the experiment report of Teacher A was higher than those of Teacher B and Teacher C. But the students of Teacher B and Teacher C tended to have limited thoughts because of the teachers¡¯ explanations. In spite of the difference, it was common phenomenon that few students understood concepts through the experiment. A lot of students were interested in the experiment, but it was hard to understand ¡®Law of definite proportions¡¯ according to the experiment.

【 授权许可】

Unknown