PENGEMBANGAN LKPD MATEMATIKA DALAM PEMBELAJARAN BERDIFERENSIASI PROSES UNTUK MENINGKATKAN HASIL BELAJAR

ABSTRACT
This study aims to develop a mathematics Student Worksheet (LKPD) based on process-differentiated instruction and to examine its validity, practicality, and effectiveness in improving students’ learning outcomes on the topic of One-Variable Linear Equations (PLSV) in Grade VII-B of SMP Negeri 2 Kalanganyar. This research employed a Research and Development (R&D) design adapted from the ADDIE model, consisting of the stages of Analysis, Design, Development, Implementation, and Evaluation.
Expert validation from material, media, and instructional reviewers indicated that the LKPD met the criteria of being highly valid in terms of content accuracy, presentation quality, and alignment with learning objectives. The practicality of the LKPD was reflected in positive responses from teachers and students, who perceived the instructions as clear, the activities as varied, and the learning process as supportive of students’ diverse readiness levels, learning styles, and interests. The effectiveness test using a pretest posttest design showed a significant improvement in learning outcomes, evidenced by an increase in the average score from 59.00 to 80.67. These findings suggest that the process-differentiated LKPD successfully accommodated students’ learning diversity, enhanced engagement, and strengthened conceptual understanding of PLSV.
Overall, the study produced an LKPD that is valid, practical, and effective for use in mathematics instruction. The findings contribute to the development of adaptive learning materials aligned with the principles of differentiated instruction in the Merdeka Curriculum, and provide practical implications for teachers in designing responsive, flexible, and student-centered learning environments.