EFEKTIVITAS MODEL PROJECT BASED LEARNING PEMBUATAN BIOPLASTIK DARI KULIT PISANG UNTUK MENINGKATKAN SIKAP PEDULI LINGKUNGAN DAN PERILAKU PRO-LINGKUNGAN SISWA
DOI:
https://doi.org/10.23969/jp.v11i03.61533Keywords:
environmental concern attitude, pro-environmental behavior, project based learning, banana peel bioplastic, green chemistry.Abstract
The Project-Based Learning (PjBL) model places students at the center of learning to gain real experience related to environmental sustainability. This study describes the effectiveness of the PjBL model in producing bioplastics from banana peels within green chemistry material to enhance high school students' environmental concern attitudes and pro-environmental behavior. A quasi-experimental method with a non-equivalent control group design was used. The sample consisted of class X.1 as the experimental group and X.2 as the control group, selected through cluster random sampling. Results show the average N-gain of environmental concern attitude in the experimental class was higher than the control class, with an effect size (r) of 0.67 (large category). Pro-environmental behavior also showed a highly significant difference (Mann-Whitney U, Z = -3.932; Asymp. Sig. < 0.05) with an effect size (r) of 0.50 (large category). It is concluded that the PjBL model for producing banana-peel bioplastics is effective in enhancing students' environmental concern attitudes and pro-environmental behaviors
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References
Afriana, J., Permanasari, A., & Fitriani, A. (2016). Penerapan project based learning terintegrasi STEM. Jurnal Inovasi Pendidikan IPA, 2(2), 202–212.
Anastas, P. T., & Warner, J. C. (1998). Green Chemistry: Theory and Practice. Oxford University Press.
Azrai, E. P., dkk. (2024). Enhancing students' pro-environmental behavior through project-based learning. Jurnal Pendidikan IPA.
Dewey, J. (1933). How We Think: A Restatement of the Relation of Reflective Thinking to the Educative Process. D.C. Heath and Company.
Fernandez-Manzanal, R., Rodriguez-Barreiro, L., & Carrasquer, J. (2007). Evaluation of environmental attitudes. Science Education, 91, 988–1009.
Hake, R. R. (2012). Relationship of individual student normalized learning gains in mechanics. Physics Education Research Conference, 8(1), 1–14.
Hungerford, H. R., & Volk, T. L. (1990). Changing learner behavior
through environmental education. The Journal of Environmental Education, 21, 8–21.
Jambeck, J. R., dkk. (2021). Plastic waste inputs. Science Advances, 7(14), 75–90.
Kolb, D. A. (1984). Experiential Learning: Experience as the Source of Learning and Development. Prentice-Hall.
Kuo, Y. C., Tseng, C. H., & Yang, Y. T. (2021). Promoting pro-environmental behaviors through project-based learning in chemistry education. Journal of Chemical Education, 98(4), 1120–1132.
Leeuw, A., Valois, P., Ajzen, I., & Schmidt, P. (2015). Using the theory of planned behavior to identify key beliefs underlying pro-environmental behavior. Journal of Environmental Psychology, 42, 128–138.
Lange, F., & Dewitte, S. (2022). Measuring pro-environmental behavior: Review and recommendations. Journal of Environmental Psychology, 81, 101790.
Ozden, M. (2008). Environmental education and the integration of education for sustainable development into the curriculum. International Journal of Sustainability in Higher Education, 9, 253–262.
The George Lucas Educational Foundation. (2005). Instructional module project based learning. Edutopia.
Ajzen, I. (1991). The theory of planned behavior. Organizational Behavior and Human Decision Processes, 50, 179–211.
Bell, S. (2010). Project-based learning for the 21st century: Skills for the future. The Clearing House, 83(2), 39–43.
Cohen, J. (2017). Statistical Power Analysis for the Behavioral Sciences. Routledge.
Dyncer, S. (2015). Effect of computer assisted learning on students' achievement in Turkey: A meta-analysis. Journal of Turkish Science Education, 12(1), 99–118.
Field, A. (2013). Discovering Statistics Using IBM SPSS Statistics. Sage Publications.
Harmiansyah, dkk. (2025). Prosedur pembuatan bioplastik dari kulit pisang. Jurnal Kimia Terapan.
Jahjouh, Y. M. A. (2014). The effectiveness of blended e-learning forum in planning for science instruction. Journal of Turkish Science Education, 11(4), 3–16.
Kokotsaki, D., Menzies, V., & Wiggins, A. (2016). Project-based learning: A review of the literature. Improving Schools, 19(3), 267–277.
Milfont, T. L., & Duckitt, J. (2004). The structure of environmental attitudes. Journal of Environmental Psychology, 24, 289–303.
Nurul, H., Rahmawati, I., & Hidayat, M. (2021). Bioplastik kulit pisang. Jurnal Sains dan Aplikasi Kimia, 15(1), 34–42.
Sanjaya, I. G., Puspita, T., & Windayani, N. (2019). Potensi kulit pisang sebagai bahan baku pembuatan bioplastik. JKPK, 4(2), 101–108.
Stern, P. C. (2000). Toward a coherent theory of environmentally significant behavior. Journal of Social Issues, 56, 407–424.
Thomas, J. W. (2000). A Review of Research on Project-Based Learning. The Autodesk Foundation.
Yoon, J. I., Lee, K. J., & Larson, L. R. (2024). Place attachment mediates links between pro-environmental attitudes and behaviors. Frontiers in Psychology, 15, 1–13.
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