PENGEMBANGAN MEDIA EDUKATIF SCRABBLE BERMUATAN BAHASA LOKAL MEDAN TERHADAP PENGUASAAN KOSAKATA BAHASA INDONESIA SISWA KELAS III SDN 104206 SEI ROTAN

Abstract

This study aimed to determine the feasibility, practicality, and effectiveness of an educational Scrabble medium infused with local Medan vocabulary in improving Indonesian vocabulary mastery among third-grade students at SDN 104206 Sei Rotan. This study used a Research and Development (R&D) approach with the ADDIE model, comprising analysis, design, development, implementation, and evaluation. The subjects consisted of three validators and 20 third-grade students. Data were collected through validation questionnaires and essay-based pre-test and post-test, then analyzed using average validation percentages and the N-Gain formula. The results showed that the media was rated highly feasible by the media expert (96%), the test-instrument expert (94%), and an education practitioner (98%), and was considered highly practical (98%). The effectiveness test showed that students' average score increased from 57.45 (pre-test) to 81.60 (post-test), with an average N-Gain of 0.54 (moderate category), while classical mastery rose from 30% to 100%. These findings indicate that the developed media is feasible, practical, and effective for teaching Indonesian vocabulary. Teachers are encouraged to use this Scrabble-based educational media as an innovative, contextual, and enjoyable alternative for vocabulary instruction in elementary schools.