Abstract
One of the factors that have become an obstacle in the development of techno-logy to use ocean wave energy as a renewable energy source is the lack of human resources who have expertise in this field. Therefore, in the long term, it is necessary to introduce basic knowledge to the young generation about wave energy and other renew-able energies and even must equip them with important skills such as creative thinking skills. This study aims to introduce students to how to utilize ocean waves as renewable energy while at the same time developing student creative thinking skills through semi-assisted project-based learning. This type of research is weak experiment research with one group pretest-posttest design research. The research was conducted on 31 pre-service physics physics teachers who were taking environmental physics lectures at a teacher training university in West Nusa Tenggara. The performance appraisal data were analyzed descriptively while the test result data were analyzed using the N-gain and the Wilcoxon test. Based on the results of data analysis, it was obtained <g> = 0.725, which means that there was a high increase in students' mastery of the concept of using ocean waves as a renewable energy source. In addition, the results of the performance appraisal data (score > 3) indicated that at each stage of learning, students were provided with indicators of creative thinking skills with very satisfied categories. Therefore, it can be concluded that environmental physics lectures using semi-assisted project-based learning able to improve students' mastery of concepts and creative thinking skills.
Highlights
Indonesia is one of the countries in the world which has the largest sea area with the secondlongest coast in the world after Canada (Romadhona et al, 2020)
Project-based learning is more than just a project because it investigates and responds to authentic, interesting, and complex problems with a deep and sustainable concern. This has a positive impact on pre-service physics teachers, one of which is being able to increase their mastery of concepts in the material being taught
Based on the results of the research and discussion above, it can be concluded that environmental physics lectures through Semi-assisted project-based learning (SA-PjBL) can improve pre-service physics teachers' conceptual mastery of the use of ocean wave energy as a renewable energy source
Summary
Indonesia is one of the countries in the world which has the largest sea area with the secondlongest coast in the world after Canada (Romadhona et al, 2020). This is an advantage for Indonesia in terms of the large potential for ocean energy. Indonesian sea waters along the southern coast of Java to Nusa Tenggara are locations that have a large potential for wave energy ranging from 10 - 20 kW/m (Rizal et al, 2019). A study has concluded that wave energy at several points in Indonesia can reach up to 70 kW/m in several locations (Zikra, 2017).
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