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Abstract

This study aimed to empower the collaboration skills of Class VII B students at SMP Laboratorium UM through the implementation of the Game-Based Learning model using the Secret Mission game in science learning on the topic of Physical and Chemical Changes. The study was motivated by the low level of students’ collaboration skills, as indicated by previous classroom assignments that were mostly completed individually rather than collaboratively in groups. The study employed the Lesson Study approach, which consisted of three stages: Plan, Do, and See. During the planning stage, the Lesson Study team collaboratively designed learning modules, game scenarios, instructional media, and observation instruments. In the implementation stage, students participated in the Secret Mission game through group-based missions requiring communication, teamwork, and problem-solving skills. Observation results showed that most students actively engaged in collaborative activities during the learning process. The findings revealed that the implementation of the Secret Mission game successfully empowered students’ collaboration skills, as reflected in several indicators, including accepting assigned group membership (90%), respecting differences of opinion (84%), actively contributing (75%), accepting group agreements (78%), and helping peers experiencing difficulties (66%). Therefore, the Secret Mission game can serve as an innovative and interactive learning strategy to strengthen collaboration skills in junior high school science learning.

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