The scientific work independence is the core competency of student teacher of science. In this research, the effectiveness of the Science Integrated Learning Model (SIL) was measured in term of the scientific work independence of student teacher of science in changing the society's original knowledge into scientific knowledge. The changing was measured through Ethnoscience learning. The experimental method was used with the control group and experimental group in three different universities. The result of the t-test shows a correlation coefficient significance value at 0.000 < 0.05. Therefore, it concludes that there is not any difference between the experimental and control group. However, there is an effect of model application on the independence of the scientific work of student teacher of science.

The study aims to investigate Person Ability and Item Fit instruments for critical thinking skills of the environment (Eco Critical Thinking Skill) in elementary pre-service teachers. Instrument investigations were carried out by describing item fit, separation of item and person, unidimensionality, and reliability of item and person. The research method was carried out quantitatively by collecting data through an open-answer essay test and an ecocritical thinking skill test. Participants in this study were Elementary School Teacher Education (ESTE) students from 3 universities in Surabaya of East Java, Surakarta of Central Java, and Manggarai of East Nusa Tenggara. The number of participants was 110 ESTE students. Data were analyzed with the Rasch Model WINSTEP software. The result of the study is that 36% of ESTE students have high Person Ability, 58% of them have average Person Ability, and the rest (6%) have low Person Ability. Students who have higher abilities are dominated by students from campus in Surabaya at 50%. Item fit Instrument with Mean Square (MnSq) 0.7 - 1.33. ZSTD -1.4 - 2.0 and Pt-measure Corr 0.49–0.6. The research concludes that an instrument of ecocritical thinking skills is a good fit instrument. The distribution of pre-service teacher qualifications from Surakarta and Manggarai is at a medium level, and students from Surabaya-East Java dominate high ability. Elementary pre-service teachers have the most dominant ability to explain and analyze a phenomenon or fact related to environmental damage.

Due to the COVID-19 pandemic, learning activities have encountered obstacles. One of the impacts was the low learning outcomes achieved by students. The purpose of this study was to improve the learning outcomes of junior high school students during the physical distancing period by implementing problem-based learning through Smart Apps Creator 3. This Classroom Action Research (CAR) used Smart Apps Creator 3 as the platform during learning activities of junior high school students. The research subjects were junior high school students (VIII graders of SMP Negeri 8 Surakarta) with a total number of students was 32 which consisted of 16 males and 16 females. The results showed that the application of Smart Apps Creator 3 has improved students’ learning outcomes. It has been proven that the average test score increased from 73.43 (pre-cycle) to 85.56 (cycle II). Moreover, the N gain score obtained was 0.45 (categorized as sufficient). In addition, the percentages of classical learning completeness were 59.37% (pre-cycle) and 93.75% (cycle II). Thus, the Smart Apps Creator 3 can improve student learning outcomes.

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