https://siducat.org/index.php/isej/issue/feed 2025-12-31T10:34:34+07:00 Rojai Zhofir rojai@mail.uinfasbengkulu.ac.id Open Journal Systems <p align="justify">ISEJ : Indonesian Science Education Journal is a medium of communication used by researchers, lecturers, teachers, practitioners, and University student for submitting result of studies and prioritized result of the study and review of the literature in the sphere of natural science education in primary education, secondary education and higher education. Additionally, this journal also covers the issues of environmental education &amp; environmental science.</p> https://siducat.org/index.php/isej/article/view/1820 2025-12-31T10:34:34+07:00 Rizka Dwi Maretha‎ riskadwi@gmail.com Irwandani irwandani@radenintan.ac.id Vandan Wiliyanti vandanwiliyanti@radenintan.ac.id

<p><em>This study was conducted to develop an Electronic Student Worksheet (E-LKPD) based on Augmented Reality (AR) with the LOK-R (Literacy, Orientation, Collaboration, Reflection) model for Physics on thermodynamics material for grade XI students and to test its effectiveness in improving students' critical thinking skills. The research method used was Research and Development (R&amp;D) with the 4D development model, but limited to the development stage (3D). Data collection methods involved non-test instruments (observation sheets and questionnaires) and a 10-item essay test. The results of the study indicate that: (1) The AR-based Physics E-LKPD with the LOK-R model is highly suitable for use in thermodynamics learning for high school students with a "Very Good" category based on expert validation; (2) The developed E-LKPD can improve students' critical thinking skills (N-gain = 0.73) with a "High" category; and (3) This E-LKPD is effective for learning thermodynamics topics regarding students' critical thinking skills.</em></p>

2025-12-31T00:00:00+07:00 Copyright (c) 2025 Rizka Dwi Maretha‎, Irwandani, Vandan Wiliyanti