<![CDATA[This study aims to compare the effects of the Team Games Tournament (TGT) and Numbered Heads Together (NHT) models on elementary students' mathematics learning outcomes. Conducted with fifth-grade students at SDK Bali Loura using a quasi-experimental design, data were collected via a validated 10-item multiple-choice test, as verified by mathematics education experts. Data analysis encompassed descriptive statistics (pretest and posttest means), prerequisite tests (normality and homogeneity), and hypothesis testing (paired samples t-test and independent t-test). Results revealed: (1) TGT group pretest and posttest means of 40.7 and 85, respectively, versus NHT's 38.6 and 71.4; (2) Normality tests yielded significance values of 0.115 (TGT) and 0.251 (NHT), both >0.05, indicating normal distribution; homogeneity significance was 0.889 (>0.05), confirming homogeneity; (3) Paired samples t-tests for both groups showed significance of 0.000 (<0.05), signifying significant pretest-posttest differences; the independent t-test yielded 0.001 (<0.05), indicating significant mean differences between TGT and NHT groups.]]>
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