This study aims to increase students' cognitive knowledge about bullying (anti-bullying) at SD Negeri 2 Pundungsari. A descriptive quantitative method was used through a pre-test and post-test approach on 44 students from grades IV, V, and VI using total sampling. The educational intervention was delivered interactively through lectures, educational videos, songs, anti-bullying claps, discussions, and the Good Friend Oath declaration. The results showed an increase in students' cognitive knowledge, with the average score rising from 6.14 (61.36%) on the pre-test to 8.20 (82.05%) on the post-test. The learning mastery rate increased from 47.73% (21 students) to 86.36% (38 students), surpassing the program's success indicator of 70%. The improvement in mastery happened across all grade levels: Grade IV (92.86%), Grade V (80.00%), and Grade VI (86.67%). As for the 6 students (13.64%) who didn’t complete the learning, they were affected by specific obstacles, such as limited reading literacy in Grade IV, reluctance to take written tests in Grade V, and reliance on verbal guidance and audio-visual media in Grade VI. Overall, this interactive education is effective in improving elementary school students’ cognitive understanding of bullying concepts and impacts.
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