<![CDATA[This study examined the effect of the Team Games Tournament (TGT) cooperative learning model on learning outcomes and collaboration skills of grade X students on the topic of environmental change. Preliminary observation at Madrasah Aliyah Tahfizhil Qur’an YICSU indicated uneven student participation in group work and low mastery of the topic. A quasi-experimental method with a pretest-posttest control group design was applied to 57 students selected through cluster random sampling, consisting of an experimental group taught with TGT (28 students) and a control group taught conventionally (29 students). Learning outcome data were collected through a multiple-choice test and analyzed using an independent samples t-test, while collaboration skill data were collected through a five-indicator observation sheet and analyzed descriptively through group means and category percentages. Results showed that the experimental group’s mean posttest score (66.79) was significantly higher than the control group’s (59.48), with a significance value of 0.037. Descriptively, the experimental group’s mean collaboration skill score (82.54) was also higher than the control group’s (77.24), supported by a larger proportion of students in the highly collaborative category (50.00% versus 31.03%). These findings imply that TGT can serve as an alternative Biology learning model that supports both academic achievement and social skill development simultaneously, particularly on topics requiring conceptual understanding and group cooperation.]]>
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