Pengaruh Video Penuntun Praktikum Terhadap Penguasaan Konsep dan Keterampilan Laboratorium Siswa SMA pada Materi Fotosintesis

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Published Jul 31, 2026
https://doi.org/10.62491/njpi.2026.v6i3-6
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Vol. 6 No. 3 (2026)

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Neiha Aisyah Nurfadillah
Universitas Pendidikan Indonesia, Indonesia
https://orcid.org/0009-0004-3300-1672
Sariwulan Diana
Universitas Pendidikan Indonesia, Indonesia
Bambang Supriatno
Universitas Pendidikan Indonesia, Indonesia

Abstract

Purpose – Many students experience difficulties in conducting laboratory experiments because pre-laboratory preparation is often ineffective. This condition may hinder students in carrying out laboratory activities and connecting experimental results with the concepts they have learned. Therefore, alternative pre-laboratory activities are needed to support students’ conceptual understanding and laboratory skills. This study examined the use of pre-laboratory videos in photosynthesis laboratory activities.
Methods – This study used a pre-experimental method with a one-group pretest-posttest design. The participants were 35 students selected through purposive sampling. The instruments included a conceptual mastery test, a laboratory skills assessment, an observation sheet, and a Likert-scale student response questionnaire on the use of pre-laboratory videos. The data were analyzed using N-Gain analysis and the Wilcoxon signed-rank test.
Findings – The results showed an increase in students’ conceptual understanding, with an N-Gain score of 0.77, which was categorized as high. The Wilcoxon signed-rank test indicated a significant difference between the pretest and posttest scores (p < 0.05). Students’ laboratory skills also improved, with an N-Gain score of 0.54. In addition, students gave positive responses to the use of pre-laboratory videos in laboratory activities. These findings indicate that pre-laboratory videos may support students’ conceptual understanding and laboratory skills in photosynthesis experiments.
Research Implications – Since this study used a pre-experimental design without a control group, the findings should be interpreted with caution. The results indicate improvement after the use of pre-laboratory videos, but they do not provide strong evidence of a causal relationship. Further studies involving a control group are needed to examine the effectiveness of pre-laboratory videos more rigorously.

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How to Cite
Nurfadillah, N. A., Diana, S., & Supriatno, B. (2026). Pengaruh Video Penuntun Praktikum Terhadap Penguasaan Konsep dan Keterampilan Laboratorium Siswa SMA pada Materi Fotosintesis. Nusantara: Jurnal Pendidikan Indonesia, 6(3), 630–644. https://doi.org/10.62491/njpi.2026.v6i3-6
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