摘要:Abstract: Improving Scientific Argumentation Skill of High School Students through ESAR (En- gage, Study, Activate, Reflect) Learning Model . One of the goals of biology learning in senior high schools is to develop scientific thinking skills, one component of which is scientific argumentation. This study aims to determine the effectiveness of ESAR learning model compared to lecture-problem- discussion (CSD) in improving students' scientific argumentation skill. Employing a non-randomized pretest-posttest design, this tudy involved two equal classes of SMA Negeri 1 Pagak Malang, East Java, which had been selected randomly. One class consisting of 20 students was assigned as an experimental group being taught using ESAR model, whereas the other was assigned as a control group being taught using CSD model. Students' scientific argumentation skill was measured using Scientific Argument Es- say Test consisting of 15 items reflecting argumentation indicators, comprising data, warrants, and claim. A scoring rubric consisting of five levels of argumentation was employed to rate students’ essays. The results of comparing pre-test and post-test scores using ANACOVA show that ESAR learn- ing model effectively improved students' scientific argumentation skill. It is then recommended that ESAR learning model be used in biology learning to improve scientific argumentation skill of high school students.
关键词:argumentasi ilmiah; pembelajaran biologi; model pembelajaran ESAR; model pembelajaran CSD.