<![CDATA[This research is a quantitative research which aim to determine the effect of Treffinger learning model on mathematical concept understanding of grade XI MIPA students in senior high school. Population of the research is grade XI MIPA students in one of national school in Majene. One of the class chosen as sample by using cluster random sampling. The data analyzed by descriptive analysis and inferential analysis techniques. Results of descriptive analysis are: (1) students’ average score of pretest in low category and students’ average score of posttest in high category, (2) normalized gain’s average score in medium category. Results of the inferential analysis are: (1) students’ posttest score significantly pass the minimum completeness score; (2) there is significant increasing in mathematical concept understanding test after the application of Treffinge learning model; (3)Amount of students that reach the minimum score of test significantly pass the presentation of learning completeness criteria. Based on the research result we can conclude that the implementation of Treffinger learning model give an effect on mathematical concept understanding in the topic sequence and seriesof grade XI MIPA students in senior high school.]]>
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