R.K. Dewi, S. Wardani, N. Wijayati
The following study was carried out as a preliminary investigation of students' critical thinking skills after a learning process in redox reaction matter. The subject of this research was 36 students of science class grade XI school year 2018/2019 in SMA Negeri 8 Semarang. The data analysis technique in this research was done by calculation of the questionnaire results of students' responses to the questions on redox material. Methods of data collection were done by observation, documentation, teacher interview, and student interview. The instruments of this study consisted of observation sheets, questionnaires, and interview sheets. The results showed that students' critical thinking skills in redox material concept after learning process included in the category was low achievement. In advanced, we will develop efforts to improve students' critical thinking skills at SMA Negeri 8 Semarang that will be done by applying creative learning models and use of learning media. © Published under licence by IOP Publishing Ltd.
Chemistry Education, Postgraduate Universitas Negeri Semarang, Indonesia; Chemistry Department, Universitas Negeri Semarang, Indonesia
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