Pengembangan dan Efektivitas LKPD Berbasis Inkuiri Terbimbing untuk Meningkatkan Hasil Belajar Siswa Kelas XI SMA
DOI:
https://doi.org/10.29303/goescienceed.v7i4.3323Keywords:
LKPD, Guided Inquiry, Newton’s Second Law, Learning Outcomes, ADDIE.Abstract
Physics learning at the secondary school level requires active student participation and meaningful learning experiences; however, learning outcomes in physics remain a challenge. A preliminary study at SMA PEMDA Langkat Bohorok showed that approximately 60% of students obtained scores below the minimum learning criterion (KKTP) of 75, while learning activities were still predominantly teacher-centered and supported by limited instructional materials. This study aimed to develop a Guided Inquiry-based Student Worksheet (LKPD) on Newton’s Second Law that is valid, practical, and effective in improving the learning outcomes of Grade XI students at SMA PEMDA Langkat Bohorok. The study employed the Research and Development (R&D) method using the ADDIE development model, which consists of five stages: Analysis, Design, Development, Implementation, and Evaluation. The research subjects consisted of two expert validators, one physics teacher, and 36 students of class XI-2 at SMA PEMDA Langkat Bohorok. The research instruments included material and media validation sheets, practicality questionnaires for teachers and students, and learning achievement tests in the form of pretests and posttests. The results showed that the Guided Inquiry-based LKPD achieved a very high level of validity, with an average validation score of 95.5%, consisting of 96.6% for material validation and 94.4% for media validation. The practicality test results indicated that the LKPD was categorized as very practical, with an average percentage score of 89.3%, obtained from teacher assessments of 86.9% and student assessments of 91.8%. Students’ learning outcomes improved significantly, as indicated by the increase in the average pretest score from 47.3 to an average posttest score of 84.8. Furthermore, the N-Gain analysis yielded a score of 0.71, which falls into the high category. Therefore, the Guided Inquiry-based LKPD developed in this study was proven to be valid, practical, and effective in improving students’ learning outcomes on Newton’s Second Law for Grade XI students at SMA PEMDA Langkat Bohorok.
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