KEEFEKTIFAN PENERAPAN MODEL PEMBELAJARAN KOOPERATIF KOMBINASI TIPE TWO STAY TWO STRAY (TSTS) DAN NUMBER HEAD TOGETHER (NHT) DENGAN PENDEKATAN SCIENTIFIC DALAM PEMBELAJARAN MATEMATIKA SISWA SMPN 2 MAKALE TANA TORAJA

ABSTRACT LISTA JAYANTI. 2019. The Effectiveness of Combination Cooperative Learning Model of Two Stay Two Stray (TS-TS) Type and Number Head Together (NHT) Type with Scientific Approach in Mathematics Learning Students at SMPN 2 Makale in Toraja District (supervised by Ahmad Talib and Asdar). The research aims at describe the effectiveness of the implementation of combination cooperative learning model of Two Stay-Two Stray (TS-TS) type and Number Head Together (NHT) type with scientific approach in mathematics learning at SMPN 2 Makale in Toraja District. The reseach was pre-experiment. The populations of the research were all of the students in class VII at SMPN 2 Makale in Toraja District and the sample was class VII.G as the experiment class chosen by using cluster random sampling technique. The data of the research consisted of students’ learning results data, students’ activities in learning data, and students’ responses data. The instruments of the research were learning model implementation observation sheet, mathematics learning result test, students’ activities observation sheet, and students’ responses questionnaire. The data of tht research were analyzed by using descriptive and inferential analysis. The results of descriptive analysis reveal that (1) the students’ mathematics learning result in experiment class is in high category, (2) the classical completeness level in pre-test has not achieved minimum completeness criteria; whereas, the post-test is in complete category, (3) the average of normalized gain is in high category, (4) the students’ activities in learning minimally is in high category, (5) the students’ responses on the implementation of combination cooperative learning model of TS-TS type and NHT type whit scientific approach minimally are in positive categories. The results of inferential analysis by using one sample t-test with the help of SPSS 21 to test the hypothesis indicate that the data of the students’ learning results in the post-test and normalized gain are significant with the score α = 0.05. Based on the results of descriptive and inferential analysis, it can be concluded that the implementation of combination cooperative learning model of TSTS type and NHT type with scientific approach is effective at SMPN 2 Makale in Toraja District. Keywords: Effectiveness, Combination Cooperative Learning Model of TSTS-NHT Type, Scientific Approac