KETERAMPILAN PROSES SAINS SISWA PADA MATERI ASAM BASA KELAS XI. The PDF file you selected should load here if your Web browser has a PDF. Escape from mr. lemoncello's library. PDF (Bahasa Indonesia). Avianti, R., dan Yonata, B., 2015, Keterampilan Proses Sains Siswa Melalui Penerapan model Pembelajaran Kooperatif.

This study aims to determine the effect of practicum-based direct learning model on science process skills and students' critical thinking skills. This study is a quasiexperimental research with the Pretest-posttest Control Group Design. The sampling technique using Cluster Random Sampling. The sample in this study were students of class XI IPA 1 (18 students) as the experimental class and class XI IPA 2 (18 students) as the control class in AL-Hamzar High School Tembeng Putik. The research instruments used were learning implementation observation sheets, the science process skills observation sheets, and learning achievements tests. The data obtained were analyzed using the t test with the help of SPSS 16.

The results of data analysis showed that the implementation of learning in the first meeting reached 81% and the second meeting 96% with a very good category. The students’ science process skills in both classes show that students' science process skills varies. The students’ critical thinking ability in the experimental class was higher than the control class. The results of pretest data analysis showed that students' critical thinking ability in the experimental class was 35.5 while the control class was 49.5. Students' critical thinking ability in post-test increased in the experimental class to 73.5 while the control class was 58.6. The results of the t-test show that tcount > ttable (3.45 > 2.04) so it can be concluded that the practicum-based direct learning model was affect toward students' science process skills and critical thinking ability.

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Refbacks • There are currently no refbacks. Unesa Journal of Chemical Education A Journal on line for communicating and reviews covering all chemical education research that published in online three times a year by Chemistry Department, Chemical Education Study Program, Faculty of Mathematics and Natural Sciences, Surabaya State University, located in Jl. Ketintang Surabaya, East Java, Indonesia. Editor-in- Chief Mitarlis, S.Pd., M.Si. Department of Chemistry, Faculty of Mathematics and Natural Sciences, State University of Surabaya, located in Jl.

Ketintang Surabaya, East Java, Indonesia. (031) 8298761. Email: Vice Editors in Chief Muchlis, S.Pd., M.Pd. Kusumawati Dwiningsih, S.Pd., M.Pd. Editorial Board: Prof. Sri Poedjiastoeti, M.Si. Rudiana Agustini, M.Pd.

Suyono, M.Pd. Bambang Sugiarto, M.Pd. Harun Nasrudin, M.Si. Achmad Lutfi, M.Pd. Utiya Azizah, M.Pd. Sukarmin, M.Pd.

Publisher: Chemistry Department, Faculty of Mathematics and Natural Sciences, Surabaya State University, located in Jl. Ketintang Surabaya, East Java, Indonesia.