Learning Biology Through the Ethnoscience-PBL Model: Efforts to Improve Students' Scientific Thinking Skills

Abstract

This study was intended to analyze the effect of the ethnosciencebased Problem Based Learning (PBL) model on scientific thinking skills in reproductive system material. This research is a quasiexperimental design in the form of a pretest-posttest non-equivalent control group design. This research was conducted at class XI MIPA students for the 2022/2023 academic year in Sumedang. The research instruments used were pretest-posttest sheets and questionnaires. The data collection technique used in this study included a test of 15 essay questions and a questionnaire. The data analysis technique used is the normality test, independent sample t-test, and N-Gain test. The results showed that the students' scientific skills increased significantly after applying the ethnoscience-based learning model on the material of reproductive system. The independent sample t-test obtained p-value = 0.000 <0.05, which was significantly different between the posttest and pretest scores. N-Gain also obtained an average of 0.75 which indicates an increase in students' scientific skills in high category. The results of students' responses to learning with the ethnoscience-based PBL model on students' scientific thinking skills were included in very good category with an overall percentage of 82.5%. This study concluded that students' scientific thinking experienced an increase after learning through the ethnoscience-based PBL model on the reproductive system material.

Ethnoscience in Biology Learning on Reproductive System Materials

“…Next, the granules are dried in the sun until dry and ready to be consumed. The following is a form of herbal medicine that has been made into a pill and is ready to be consumed (Haulia et al, 2022).…”