Analysis of students’ argumentation skills in chemistry class of grade XI through product life-cycle analysis assessment on colloid lesson

摘要

This study aimed to investigate the students' argumentation skills in chemistry classs of Grade XI after completing lesson through Project Based Learning (PBL) and Life-Cycle Analysis (LCA) on Colloid Lesson. The method used in this study was qualitative research. The data of the study were pre-task and post-task stories, students' essays, and students' projects. The data were analyzed into the Toulmin aspects. This study focused on the analysis of students' argumentation skills through life-cycle approach on lessons by combining social and scientific issues and life-cycle anlysis. The result of the study shows that the students' argumentation skills on ecological and socio-economic aspects were developed. Students' argumentation skills on scientific and moral aspects were indicated lower than on ecological and socio-economic aspects. The data shows that the Life-Cycle Analysis (LCA) in chemistry class was effectively used to develop students' argumentation skills.