A.N. Fauziah, H. Kuswanto
This research aims to determine junior high school students' critical thinking ability on ecosystem materials. This research is a quantitative descriptive research with number of sample 54 junior high school students in Sleman Regency selected by purposive sampling technique. The instrument used was essay test of critical thinking ability on ecosystems materials. Data analysis was performed in quantitative percentages. Based on analysis of the results, the critical thinking ability for material ecosystems indicator is analyze the facts/problems (47.22%), identify problem (38.70%), clarify/evaluate logical ideas (33.89%) and make conclusions (27.59%). Based on these results, the average critical thinking ability in the ecosystem material is 36.85%. This percentage showed that junior high school students' critical thinking ability on ecosystem material were in the low category. Therefore, critical thinking ability must become serious concern and appropriate learning innovations need to be developed so that students' critical thinking ability in learning science can be better. © 2020 Published under licence by IOP Publishing Ltd.
Science Education, Universitas Negeri Yogyakarta, Sleman, Indonesia; Physics Education, Universitas Negeri Yogyakarta, Sleman, Indonesia
