DEVELOPMENT OF A POWERPOINT-BASED GERITA MEDIA TO IMPROVE GRADE I STUDENTS’ LEARNING OUTCOMES

Abstract

Purpose – This study aims to develop, assess the feasibility of, and test the effectiveness of the GERITA (Visual Stimuli in Dance Movement) PowerPoint-based learning medium to improve the learning outcomes.

Methodology – This is a Research and Development (R&D) study using the ADDIE model with a pre-experimental one-group pretest-posttest design. The research subjects were 22 first-grade students at SD Negeri 2 Kertanegara, Purbalingga Regency. The research method used was a mixed-methods approach. Data were collected using test-based (pre-test and post-test) and non-test-based (interviews, questionnaires, and documentation) techniques, then analyzed using normality tests, paired-samples t-tests, and N-gain tests.

Findings – The development of the GERITA media integrates visual, audio, and interactive navigation elements into a single, simple digital platform, while also applying an embodied learning approach that connects visual and audio stimuli with students' physical experiences. The results of the feasibility validation indicated that the GERITA media received a "highly feasible" rating, with subject matter expert validation scoring 92.85% and media expert validation scoring 96%. A paired-sample $t$-test demonstrated the effectiveness of the GERITA medium, revealing a significant improvement in student learning outcomes, with a significance level (2-tailed) of 0.001 (<0.05), or a 29% increase from the pre-test average score of 53.18 to 82.73 on the post-test, placing it in the "moderately effective" category; the N-gain test yielded a value of 0.6634, placing it in the "moderate" category.

Contribution –This study provides concrete evidence that interactive PowerPoint-based learning media can be an effective, practical, and viable innovative learning strategy to improve student learning outcomes in elementary schools, particularly in first grade.