PENGEMBANGAN MEDIA PEMBELAJARAN INTERAKTIF BERBASIS FLIPBOOK DIGITAL 'KALIFE' UNTUK MENINGKATKAN KEMAMPUAN MENULIS KALIMAT EFEKTIF

Abstract

The ability to write effective sentences is an essential competency in Indonesian language learning at the elementary school level; however, field observations reveal that more than 60% of fourth-grade students still produce incoherent sentences that do not conform to standard grammatical rules. This study aimed to: (1) develop the ‘KALIFE’ (Kalimat Efektif/Effective Sentence) digital flipbook as an interactive learning medium for fourth-grade elementary school students; (2) describe the feasibility level of the media based on evaluations by material and media experts; and (3) analyze the effectiveness of the KALIFE media in improving students’ effective sentence writing skills. The study employed a Research and Development (R&D) approach using the ADDIE model with a one-group pretest-posttest design. The research subjects consisted of 15 fourth-grade students of SD NU Tanwirul Qulub, Kudus, selected through purposive sampling. Data were analyzed using a paired sample t-test and N-Gain analysis. The results showed that the mean score increased from 54.2 (pre-test) to 84.2 (post-test). The paired sample t-test yielded a significance value of 0.000 < 0.05, indicating a statistically significant difference in students’ writing ability before and after the use of KALIFE media. The N-Gain analysis produced a mean score of 0.6598 (65.97%), categorized as moderate. It is concluded that the KALIFE digital flipbook is both feasible and effective as an interactive learning medium for teaching effective sentence writing to fourth-grade elementary school students.