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N. S. Putra
Universitas Pendidikan Indonesia
Education Social Sciences

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Profile of Students’ Science Process Skills on Conventional Biotechnology Material E. Astika; H. K. Surtikanti; K. Kusnadi; N. S. Putra
Journal of Science Education Research Vol 6, No 2 (2022): J. Sc. Edu. Research
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jser.v6i2.51083

Abstract

The study aimed to find out students’ science process skill profile in grade XII. The research was conducted at SMAN 1 Tanah Putih Tanjung Melawan, Riau. The study was conducted by providing tests to students consisting of 10 questions on the scope of conventional biotechnology materials. This test used to measure students' science process skills, namely the ability to observe, communicate, interpret, propose hypotheses, apply concepts, ask questions, predict, use tools/materials, plan experiments, and classify. The research sample consisted of 70 students. The reliability value of the instrument was 0.948 of high category. It was obtained that the science process skill of students was categorized as medium with a percentage of 39.3%. The percentage of observing, communicating, interpreting, formulating hypotheses, applying concepts, asking questions, predicting, using tools/materials, planning experiments, and classifying abilities were 43.2%, 35.4%, 39.3%, 28.2%, 26.8%, 36.8%, 46.4%, 49.6%, 37.1%, and 50%, respectively. Some of the science process skill aspects showed a low category, namely in the aspects of formulating hypotheses and applying concepts. Other aspects showed medium category and almost all aspects were below 50%. The teacher’s role was very decisive as the main actor in improving students’ science process skills.
Implementation of Home-based Experiment on Photosynthesis Material to Improve Students’ Science Process Skill D. Desmiawati; I. Kaniawati; S. Anggraeni; N. S. Putra
Journal of Science Education Research Vol 7, No 1 (2023): J. Sc. Edu. Research
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jser.v7i1.52064

Abstract

This study aimed to describe the improvement of students' science process skills (SPS) after the implementation of home-based experiment activities on photosynthesis material. This research was carried out at one of the State Junior High Schools in Garut. The sample was 26 students for the experimental classes and 25 students for the control class. The research design was Pre-Posttest Control Group Design. The sample selection technique used the convenience sampling technique. The success of the learning method/model implemented was assessed through value analysis before (pretest) and after (posttest) given treatment in the experimental and control groups. The N-Gain value of the experimental group was 0.678, while the N-Gain value of the control group was 0.52. This indicated that the N-gain value of the experimental group was higher than the control group. But, the statistical analysis using post-test scores showed that there was no significant difference between the experimental group and the control group in the students’ SPS. So, the implementation of home-based experiments and ordinary practicum in the learning process has the same effect on students’ SPS results. Therefore, home-based experiments should be an option for teachers in science learning because, even though the learning process is online, the practicum is the identity, and support of science learning should not be eliminated.
Co-Authors D. Desmiawati E. Astika H. K. Surtikanti I. Kaniawati Kusnadi S. Anggraeni