SEJ (Science Education Journal)

The Effectiveness of Natural Science Handouts Based on Critical Thinking Skills on the Diversity of Living Things

Ramayanti Panjaitan — 2022-11-30

The development of critical thinking skills is one of the key factors to face the opportunities and challenges of life in the industrial era 4.0. However, this skill has not been trained properly. Therefore, the purpose of writing this paper is to analyze the effectiveness of science handouts on the material diversity of living things to improve students' critical thinking skills. This study uses formative evaluation with Tessmer Model, which is limited to small group and field tests. The trial used a one group pretest and posttest design, for a small group test on 12 students and a field test on 20 class VIII students of SMPN 1 Sungai Durian. Collecting data through critical thinking tests and interviews. The results of the research on the small group and field tests showed: (1) students' skills in interpretation, analysis, explanation, evaluation, and inference were initially low to moderate; and (2) students' critical thinking skills increased significantly at = 5%, with n-gain in the moderate criteria. Thus, the science handout based on critical thinking skills that was developed is effectively used in science learning.

The Development of Electronic Students' Worksheet Assisted by Flip PDF Professional in Natural Science Lessons to Improve Students' Higher Order Thinking Skills

Farah Alya Gaurisankar — 2022-11-21

The development of electronic students’ worksheet assisted by flip PDF professional is used to develop students' HOTS in science lessons. The purpose of this research is to develop a valid, practical, and effective electronic students’ worksheet assisted by flip PDF professionals. The research method used is ADDIE model development research starting from the analyze, design, develop, implement, and evaluate stages. Data analysis techniques used in the study include validity, practicality, and effectiveness. Based on the results of data analysis obtained from several validators, it shows that the developed electronic students’ worksheet obtained an average percentage score of 93% with a very valid and good category to use. The results of practicality in the use of electronic students’ worksheet when learning obtained a percentage of 88.7% with a good category. In knowing the increase in students' HOTS, the N-Gain test was carried out and obtained a value of 0.65 with moderate criteria, which means that the electronic students’ worksheet assisted by flip PDF professionals is quite effective in increasing students' HOTS. The results of student responses to the use of the developed electronic students’ worksheet showed an average percentage score of 58.94%. Based on the analysis results obtained, the electronic students’ worksheet assisted by flip PDF professionals in science lessons to improve students' higher order thinking skills is feasible to use.

The Validity of the Vibrations, Waves, and Sounds - Related Guided Inquiry Learning Material Assisted by Google Sites

Astin Lukum — 2022-11-22

This study aims to describe the validity of the vibration, waves, and sounds – related guided inquiry learning material assisted by Google sites. This type of research is quantitative research with a descriptive approach that is focused on the validation test process through expert validation tests. The instrument used in this research is the expert validation sheet. The learning material validated in this study include lesson plans, student worksheets, teaching materials, learning media and learning outcomes tests. The results of lesson plans validation by experts obtained an average score of 3.3 (valid). For the validation of the student worksheets, the average score is 3.1 (valid). The validation of teaching materials obtained an average score of 3.4 (valid). The validation of learning media obtained an average score of 3.4 (valid). And the learning outcomes test obtained validation results with an average score of 3.2 (valid). From these results, the overall average value of the validation of learning tools is 3.3 and is included in the valid category. So it can be concluded that the guided inquiry learning material assisted by Google sites on the material of vibration, waves, and sound developed is feasible to be used in the learning process.

Concept Attainment Model (CAM) in Empowering Critical Thinking Skills and Concepts Mastery for High School Students

Asy'ari Asy'ari — 2022-11-30

Abstract.Existing human resources must be prepared early. Indeed, national education aims to create intelligent and competitive generations. This research is oriented towards the influence of CAM, which is implemented in the learning process. This research method is quasi-experimental. The research design used a non-equivalent control group design. As a sample is XI grade in SMA Muhammadiyah 7 Surabaya. Data collection techniques through observation and tests, critical thinking skills test sheets and students' concept mastery tests. Descriptively, self-critical thinking skills are 100% completed classically. The results of the t-test have a significance value of ≤ 0.05, which is 0.000. Then for mastery of the concept from the results of the t-test, the significance value is ≤ 0.05, namely with a significance value of 0.000. From the results of this study, it can be concluded that there is an influence of CAM p on students' critical thinking skills and students' mastery of concepts.

The Analysis Technological Pedagogical Content Knowledge (TPACK) of Natural Science Secondary School Teachers' Based on School Accreditation

Herry Suryanto — 2022-11-29

This study aims to determine the ability of natural science secondary school teachers’ to use information and communication technology to assist the learning process (Technological Knowledge), the ability of natural science secondary school teachers’ to manage classes (Pedagogical Knowledge), and the ability of natural science secondary school teachers’ to mastery learning (Content Knowledge). This research is a qualitative research with a phenomenological approach. The research subjects were a natural science teachers’ at SMP Negeri 1 Prambon who was accredited A and a natural science teachers’ at SMP Perjuangan Prambon who was accredited B. Data collection techniques in this study used documentation, observation and interviews. The data analysis phase uses the Miles and Huberman model. Test the validity of the data using technical triangulation. Based on the research results, it was revealed that the ability of natural science secondary school teachers’ in mastering information and communication technology (Technological Knowledge) is quite good. Teachers at schools accredited A and B are quite good at operating Microsoft Word, Microsoft Power Point. Teachers at schools accredited A are not good at operating Microsoft Excel, while teachers at schools accredited B are not very good at operating Microsoft Excel. The ability of secondary school natural science teachers’ at accredited A schools to manage classes (Pedagogical Knowledge) is very good, while the ability of natural science secondary school teachers’ at schools accredited B is quite good. The ability of natural science secondary school teachers’ in schools accredited A is very good in mastering the subject matter they teach (Content Knowledge), while the ability of natural science teachers in schools accredited B is quite good. In future research it is expected to be able to uncover the TPACK of science teachers based on the length of time the teacher has been teaching or the other factor.