“The Implementation of Project Based Learning Model in CAD/CAM Instruction to Improve Learning Outcomes of Mechanical Engineering Students”
Abstract
This study aims to analyze the effectiveness of implementing the Project Based Learning (PjBL) model in the CAD/CAM course to improve the learning outcomes of Mechanical Engineering students at Universitas Tomakaka. Using a quasi-experimental method with a pretest-posttest control group design, the study involved 60 fourth-semester students divided equally into an experimental group taught with PjBL and a control group taught using conventional methods. Data were collected through cognitive tests, project assessments, and affective rubrics, then analyzed using normality and homogeneity tests, independent t-tests, and N-Gain scores.
The findings showed that the experimental group experienced significant improvement in cognitive learning outcomes, with higher posttest scores and moderate to high N-Gain values, compared to the control group, which demonstrated only low improvement. Psychomotor outcomes also revealed a strong positive effect, with the PjBL group outperforming the control group in 3D modeling accuracy, design quality, and software utilization. Furthermore, affective outcomes highlighted that the experimental group exhibited greater teamwork, communication, and participation, supported by significant statistical differences.
These results confirm that PjBL is an effective learning model that enhances not only cognitive and technical competencies but also essential soft skills required by the engineering profession. The integration of PjBL in CAD/CAM courses provides a holistic learning experience that prepares students to face the challenges of Industry 4.0. This study recommends broader implementation of PjBL in technical education, supported by adequate facilities and collaboration with industry to ensure the relevance and sustainability of project-based curricula.
References
and performance in engineering education. Journal of Educational Technology and Engineering, 13(2), 87–98. https://doi.org/10.31004/jete.v13i2.3789
Anwar, S., & Suryana, R. (2023). Team-based project learning and its effect on vocational students’ technical
skills. Journal of Technical and Vocational Education, 17(1), 45–57. https://doi.org/10.24036/jtve.v17i1.5674
Arifin, M., & Nurdin, A. (2019). Integration of theory and practice through project-based learning in
mechanical engineering education. Journal of Engineering and Applied Sciences, 14(7), 2125–2134. https://doi.org/10.36478/jeasci.2019.2125.2134
Firmansyah, D., Arifin, M., & Yulianto, A. (2022). Enhancing higher-order thinking skills through project-
based learning in engineering education. International Journal of Instruction, 15(2), 245–260. https://doi.org/10.29333/iji.2022.15214a
Fitriani, N., & Maulidiyah, R. (2021). The effect of project based learning on students’ learning outcomes in
mechanical engineering education. Jurnal Pendidikan Teknik Mesin, 11(2), 112–121. https://doi.org/10.26740/jptm.v11n2.p112-121
Hamid, A., & Ardiansyah, R. (2021). Project-based learning and its impact on students’ motivation and
responsibility. Journal of Educational Development Research, 5(2), 145–157. https://doi.org/10.31004/jedr.v5i2.3982
Hanif, M., Kusumawati, A., & Yusuf, M. (2019). Implementation of project-based learning in vocational
education to improve students’ competence. Journal of Technical Education and Training, 11(2), 97–106. https://doi.org/10.30880/jtet.2019.11.02.012
Hidayat, R., & Kusumawati, D. (2020). Contextual learning and its impact on students’ understanding in
technical education. Journal of Vocational Education and Training, 72(4), 515–529. https://doi.org/10.1080/jvet.2020.1769023
Kurniawan, H., & Lestari, P. (2020). Project-based learning to develop higher order thinking skills in
engineering students. International Journal of Instruction, 13(3), 795–810. https://doi.org/10.29333/iji.2020.13348a
Kurniasih, I., & Nugraha, D. (2020). Student-centered approaches in engineering education: Enhancing
participation and affective skills. International Journal of Educational Methodology, 6(4), 245–258. https://doi.org/10.12973/ijem.6.4.245
Mahfud, T., Pranata, A., & Widodo, B. (2023). Bridging theory and practice in higher education through
project-based learning. Journal of Technical Education Science, 14(1), 67–79. https://doi.org/10.24191/jtes.v14i1.22531
Malik, A., & Sari, R. (2024). Improving employability skills through project-based learning in vocational
higher education. Journal of Vocational and Technical Education Research, 16(1), 22–34. https://doi.org/10.24036/jvter.v16i1.4921
Nasution, F., & Siregar, H. (2022). Enhancing student engagement in engineering education through project-
based learning approach. Jurnal Pendidikan Teknologi dan Kejuruan, 28(1), 45–54. https://doi.org/10.21831/jptk.v28i1.45529
Nugroho, A., Susanto, B., & Fadhilah, N. (2021). The effectiveness of project-based learning in enhancing
practical skills of vocational students. International Journal of Vocational Education Research, 5(3), 78–89. https://doi.org/10.30880/ijver.2021.05.03.007
Pratiwi, D., & Rahayu, E. (2022). Integration of design and production skills through project-based learning.
Journal of Engineering Education Research, 29(2), 120–132. https://doi.org/10.1080/jeer.2022.00234
Pramudita, Y., & Sari, N. (2021). The impact of laboratory facilities on the success of project-based
CAD/CAM learning. Jurnal Pendidikan Vokasi, 11(2), 157–168. https://doi.org/10.21831/jpv.v11i2.43210
Putri, A., & Hasanah, S. (2024). Strengthening psychomotor skills in higher education through project-based
learning. Journal of Applied Technical Education, 15(1), 67–79. https://doi.org/10.24191/jate.v15i1.33452
Ramadhani, N., & Putra, F. (2024). Integrating affective competencies in technical education through project-
based learning. Journal of Vocational and Technical Studies, 18(1), 55–68. https://doi.org/10.24036/jvts.v18i1.4903
Rahmawati, N., Putri, S., & Yuniar, M. (2021). Active learning strategies to enhance students’ cognitive
engagement in engineering courses. Education and Training Journal, 63(6), 803–815. https://doi.org/10.1108/ETJ-12-2020-0215
Rahmatullah, M., & Indrawan, T. (2023). Digital skills development through project-based CAD/CAM
learning in mechanical engineering. Journal of Engineering Education Research, 28(4), 112–125. https://doi.org/10.1080/jeer.2023.00478
Rochman, C., & Yuliana, R. (2020). The effectiveness of project-based learning in improving learning
outcomes of mechanical engineering students. Journal of Vocational and Career Education, 5(1), 32–40. https://doi.org/10.15294/jvce.v5i1.37051
Setyawan, D., & Wahyuni, E. (2022). Collaborative skills improvement through project-based learning in
technical education. Jurnal Pendidikan Teknologi dan Kejuruan, 30(2), 145–156. https://doi.org/10.21831/jptk.v30i2.53421
Siregar, B., & Lestari, S. (2022). Building empathy and leadership through collaborative project-based
learning. Journal of Applied Learning and Teaching, 5(2), 121–133. https://doi.org/10.37074/jalt.2022.5.2.11
Sugiyanto, & Hidayah, N. (2021). Constructivist learning model through project-based learning: Building
21st century skills. Jurnal Inovasi Pendidikan Teknologi, 8(1), 55–63. https://doi.org/10.26858/jipt.v8i1.23456
Sutrisno, H., & Abdullah, A. (2021). The effect of collaborative project-based learning on students’ academic
performance. Asian Journal of Education and Social Studies, 25(2), 90–102. https://doi.org/10.9734/ajess/2021/v25i230611
Tjalla, A. (2020). Evaluasi efektivitas metode pembelajaran dalam pendidikan teknik di era revolusi industri.
Jurnal Pendidikan dan Kebudayaan, 25(3), 278–289. https://doi.org/10.24832/jpnk.v25i3.24565
Wibowo, H., & Santosa, A. (2022). Assessment strategies in project-based learning: A case study in
engineering education. International Journal of Educational Methodology, 8(1), 65–78. https://doi.org/10.12973/ijem.8.1.65
Widodo, P., Astuti, R., & Hidayat, M. (2023). Authentic learning tasks and their influence on students’
intrinsic motivation. Journal of Innovative Learning, 9(1), 67–79. https://doi.org/10.20885/jil.v9i1.567
Yuliana, M., & Hartono, A. (2020). Enhancing vocational competence through project-oriented learning
models. Journal of Vocational Development Studies, 12(2), 155–166. https://doi.org/10.15294/jvds.v12i2.28987
Yusof, N., & Rahman, S. (2020). The role of lecturers in implementing project-based learning in higher
education. Asian Journal of University Education, 16(4), 23–34. https://doi.org/10.24191/ajue.v16i4.11949
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