Article Sidebar

Submitted
June 12, 2025
Accepted
July 19, 2025
Published
October 25, 2025
Download
PDF
Statistic
Read Counter : 74 Download : 76

Main Article Content

Abstract

This study evaluates the effectiveness of project-based worksheets in developing students' scientific performance through practical application of rice husk charcoal adsorbents for groundwater hardness reduction. This is first study integrating project-based worksheets with practical application of rice husk charcoal for water hardness reduction for develoving students’ scientific performance in chemistry education. Using a pre-experimental one-shot case study design, 36 twelfth-grade students from SMKN 7 Bandung participated in a six-session practicum involving complexometric titration and adsorption processes. Students' scientific performance was assessed across five project stages using validated rubrics (0-100 scale). Rice husk charcoal adsorbents (0.2g and 0.5g) were tested against groundwater samples, with hardness measured through EDTA titration using established analytical protocols. Results demonstrated consistently high performance across all stages: problem identification (92.1%), project design (91.3%), implementation (89.8%), prototype development (89.8%), product evaluation (95.6%), and finalization (86.7%). Statistical analysis showed significant improvement in students' ability to connect theoretical concepts with practical applications, particularly in understanding complexometric titration mechanisms and adsorption principles. The adsorbent successfully reduced groundwater hardness below WHO standards (500 mg/L), validating both the environmental solution and pedagogical approach. This integrated methodology uniquely combines analytical chemistry education with sustainable environmental remediation, demonstrating measurable enhancement in students' scientific literacy, critical thinking, and problem-solving capabilities through authentic, hands-on learning experiences that address real-world water quality challenges.

Article Details

License

Copyright (c) 2025 Hana Humaira Khairunnisa, Sari Sari , Yulia Sukmawardana

Creative Commons License

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Author retain copyright and grant the journal right of first publication with the simultaneously licenced under A Creative Commons Attribution (CC-By-SA) 4.0 License that allows others to share the work with an acknowledgment of the worsk's authorship and initial publication in this journal.

How to Cite
Khairunnisa, H. H., Sari , S. ., & Sukmawardana , Y. . (2025). Application of Project-Based Worksheets on the Utilization of Rice Husk Charcoal Adsorbent to Reduce Groundwater Hardness in Develoving Students’ Scientific Performance. IJCER (International Journal of Chemistry Education Research), 9(2), 93–107. https://doi.org/10.20885/ijcer.vol9.iss2.art1
Download Citation
Endnote/Zotero/Mendeley (RIS)
BibTeX
Crossref
Scopus
Google Scholar
Europe PMC

References

  1. C. D. Pratiwi, F. Kristin, and I. Anugraheni, “Penerapan Model Pembelajaran Project Based Learning (PjBL) Berbantuan Media Mind Map untuk Meningkatkan Keaktifan dan Hasil Belajar Siswa Kelas 4 SD,” JGK (Jurnal Guru Kita), vol. 2, no. 3, 116–125, 2018. https://doi.org/10.24114/jgk.v2i3.10393. DOI: https://doi.org/10.24114/jgk.v2i3.10393
  2. I. Fahrezi, M. Taufiq, A. Akhwani, and N. Nafi’ah, “Meta-Analisis Pengaruh Model Pembelajaran Project Based Learning Terhadap Hasil Belajar Siswa Pada Mata Pelajaran IPA Sekolah Dasar,” Jurnal Ilmiah Pendidikan Profesi Guru, vol. 3, no. 3, pp. 408–415, 2020. https://doi.org/10.23887/jippg.v3i3. DOI: https://doi.org/10.23887/jippg.v3i3.28081
  3. E. Setiawan, and S. Indana, “Validitas LKPD Berbasis PjBL pada Materi Klasifikasi Tumbuhan Spermatophyta untuk Melatih Ketrampilan Berpikir Kreatif Siswa Kelas X SMA,” Bioedu, vol. 10, no. 2, pp. 250-256, 2021. https://doi.org/10.26740/bioedu.v10n2.p250-256. DOI: https://doi.org/10.26740/bioedu.v10n2.p250-256
  4. L. Sari, T. Taufina, and F. Fachruddin, “Pengembangan Lembar Kerja Peserta Didik (LKPD) dengan Menggunakan Model PJBL di Sekolah Dasar,” Jurnal Basicedu, vol. 4, no. 4, pp. 813–820, Jun. 2020. https://doi.org/10.31004/basicedu.v4i4.434. DOI: https://doi.org/10.31004/basicedu.v4i4.434
  5. N. Winarti, L. H. Maula, A. R. Amalia, N. L. A. Pratiwi, and Nandang, “Penerapan Model pembelajaran Project Based Learning untuk Meningkatkan Kemampuan Berpikir Kritis Siswa Kelas III Sekolah Dasar,” Jurnal Cakrawala Pendas, vol. 8, no. 3, pp. 552–563, 2022. https://doi.org/10.31949/jcp.v8i2.2419. DOI: https://doi.org/10.31949/jcp.v8i3.2419
  6. A. Suryawan, A. Binadja, and S. Sulistyorini, “Pengembangan Instrumen Performance Assesment Praktikum Bervisi SETS untuk Mengukur Keterampilan Proses Sains,” JPE, vol. 4, no. 1, 2015, [Online]. Available: http://journal.unnes.ac.id/sju/index.php/jpe
  7. I. Trihastuti, C. Sundaygara, and H. Y. Pratiwi, “Dampak Penerapan Model Problem Based Learning (PBL) Terhadap Penguasaan Konsep dan Kerja Ilmiah Siswa SMP pada Materi Tekanan Zat Cair,” Jurnal Terapan Sains Dan Teknologivol. 1, no. 2, pp. 73-81, 2019. https://doi.org/10.21067/jtst.v1i2.3550. DOI: https://doi.org/10.21067/jtst.v1i2.3550
  8. L. Zhang and Y. Ma, “A study of the impact of project-based learning on student learning effects: a meta-analysis study,” vol. 17, pp. 1-14, 2023, Frontiers Media SA. https://doi.org/10.3389/fpsyg.2023.1202728. DOI: https://doi.org/10.3389/fpsyg.2023.1202728
  9. D. A. Widyaningrum and T. Wijayanti, “Implementasi buku petunjuk praktikum biokimia berbasis inkuiri terbimbing untuk meningkatkan kemampuan kerja ilmiah,” Edubiotik, vol. 4, no. 02, pp. 58–67, Sep. 2019. https://doi.org/10.33503/ebio.v4i02.437. DOI: https://doi.org/10.33503/ebio.v4i02.437
  10. I. B. Suleiman, O. A. Okunade, E. G. Dada, and U. C. Ezeanya, “Key Factors Influencing Students’ Academic Performance,” Journal of Electrical Systems and Inf Technol, vol. 11, no. 41, Sep. 2024. https://doi.org/10.1186/s43067-024-00166-w. DOI: https://doi.org/10.1186/s43067-024-00166-w
  11. N. Tsalisa, 'Penerapan Lembar Kerja Berbasis Proyek pada Penurunan Kesadahan Air Sumur dengan Adsorben Limbah Tulang Ayam untuk Mengembangkan Kinerja Ilmiah Mahasiswa', Sarjana thesis, UIN Sunan Gunung Djati Bandung, 2023. [Online]. Available: https://digilib.uinsgd.ac.id/77711/.
  12. A. Stott, “Project‑based Learning in a Short‑duration Chemistry Workshop in the Developing World: Insights from Teacher Engagement,” African Journal of Research in Mathematics, Science and Technology Education, vol. 25, no. 2, pp. 1–15, 2025. https://doi.org/10.1080/18117295.2025.2494165. DOI: https://doi.org/10.1080/18117295.2025.2494165
  13. K. B. V. Ngere, Y. Rumbino, dan N. Banunaek, “Analisis Penurunan Kesadahan pada Air Sadah Sintetis (CaCl2) oleh Zeolit Alam Ende,” Jurnal Teknologi, vol. 17, no. 1, hlm. 27–31, Mei 2023. [Online], Available: https://ejurnal.undana.ac.id/index.php/jurnal_teknologi/article/view/11334
  14. S. L. Muaidah, "Penerapan Lembar Kerja berbasis Inkuiri terbimbing pada pemanfaatan Abu Sekam Padi sebagai Adsorben dalam pengolahan Limbah Cair", Sarjana thesis, UIN Sunan Gunung Djati Bandung, 2023. [Online]. Available: https://digilib.uinsgd.ac.id/77635/
  15. H. J. Ramirez and E. E. Paderna, “High school students’ perceived performance and relevance of chemistry learning competencies to sustainable development, action competence, and critical thinking disposition,” Chemistry Teacher International, vol. 7, no. 2, 2024. https://doi.org/10.1515/cti-2024-0087. DOI: https://doi.org/10.1515/cti-2024-0087
  16. W. N. Arlianty, “Model Pembelajaran Project-Based Learning sbagai Salah Satu Model Pembelajaran Efektif di Era Pandemi Covid-19,”JURNAL HURRIAH: Jurnal Evaluasi Pendidikan Dan Penelitian, vol. 2, no. 4, pp. 86–92, 2021. https://doi.org/10.56806/jh.v2i4.57. DOI: https://doi.org/10.56806/jh.v2i4.57
  17. Sugiyono, Metode Penelitian Kuantitatif, Kualitatif, dan R&D. Penerbit Alfabeta Bandung, 2020.
  18. Y. Sukmawardani, R. Meisani, C. Z. Subarkah and I. Farida, “Application of Online Project-Based Worksheets in the Utilization of Wood Sawdust as Adsorbents in Industri Liquid Waste Treatment,”Orbital: Jurnal Pendidikan Kimia, vol. 8, no. 1, pp. 14-26, 2024. https://doi.org/10.19109/ojpk.v8i1.21669. DOI: https://doi.org/10.19109/ojpk.v8i1.21669
  19. W. P. Hadi, “Identifikasi Kemampuan Pemecahan Masalah Mahasiswa Calon Guru IPA pada Penyelesaian Soal Titrasi,” J-PEK, vol. 4, no. 2, 2019. https://doi.org/10.17977/um026v4i22019p100. DOI: https://doi.org/10.17977/um026v4i22019p100
  20. R. Lestari, Y. Sukmawardani, C. Z. Subarkah, and I. Farida, “Application of Problem-Based Worksheets to Develop Higher Order Thinking Skills in The Utilization of Coconut Shells As Zn Metal Adsorbent In Laboratory Waste,” Hydrogen: Jurnal Kependidikan Kimia, vol. 12, no. 4, p. 879, Aug. 2024. https://doi.org/10.33394/hjkk.v12i4.12191. DOI: https://doi.org/10.33394/hjkk.v12i4.12191
  21. C. E. Mundy and B. K. Nokeri, “Investigating the Effects of a Context-Based Laboratory Exercise for Meaningful Learning,” J Chem Educ, vol. 101, no. 8, pp. 3118–3125, 2024. https://doi.org/10.1021/acs.jchemed.3c01260. DOI: https://doi.org/10.1021/acs.jchemed.3c01260
  22. M. A. Almulla, “The Effectiveness of the Project-Based Learning (PBL) Approach as a Way to Engage Students in Learning,” Sage Open, vol. 10, no. 3, 2020. https://doi.org/10.1177/2158244020938702 DOI: https://doi.org/10.1177/2158244020938702
  23. K. Venkatesan, J. Sundarababu, dan S. S. Anandan, “The recent developments of green and sustainable chemistry in multidimensional way: current trends and challenges,” Green Chemistry Letters and Reviews, vol. 17, no. 1, 2024. https://doi.org/10.1080/17518253.2024.2312848. DOI: https://doi.org/10.1080/17518253.2024.2312848
  24. Y. Sukmawardani, Pitriani, P. Pitriana, dan C. Z. Subarkah, “Utilization of wood sawdust as heavy metal adsorbent in paint industry waste,” Journal of Physics: Conference Series, vol. 2098, no. 1, Art. no. 012031, Nov. 2021. [Online]. Available: https://iopscience.iop.org/article/10.1088/1742-6596/2098/1/012031. DOI: https://doi.org/10.1088/1742-6596/2098/1/012031
  25. S. Solihudin, A. R. Noviyanti, and R. Rukiah, “Aktivasi Arang Sekam Padi dengan Larutan Natrium Karbonat dan Karakteristiknya,” Chimica et Natura Acta, vol. 3, no. 1, 2015. https://doi.org/10.24198/cna.v3.n1.9168. DOI: https://doi.org/10.24198/cna.v3.n1.9168
  26. C. Nurhadianti, Sari, I. Farida, and F. S. Irwansyah, “Project based online learning on the concept of the colligative properties of solutions,” in AIP Conference Proceedings, American Institute of Physics Inc., Mar. 2023. https://doi.org/10.1063/5.0135046. DOI: https://doi.org/10.1063/5.0135046