Abstract:
This study aims to determine the effectiveness of implementing the Cooperative Learning model of
the Student Teams Achievement Division (STAD) type in improving students' mathematics
learning outcomes at Sanggar Bimbingan ‘Aisyiyah Pandan, Kuala Lumpur, Malaysia. The method
used in this research is classroom action research (CAR) conducted in two cycles. Each cycle
consists of planning, implementation, observation, and reflection. The subjects of this study were 20
eighth-grade students participating in a tutoring program. The instruments used included
observation sheets, learning outcome tests, and documentation. The results showed an
improvement in students’ learning outcomes from cycle I to cycle II. The average student scores
increased significantly, and students’ learning activities also showed positive changes. Thus, the
STAD learning model is effectively applied to improve mathematics learning outcomes in tutoring
settings, especially for students with diverse educational backgrounds.