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The aim of this research is to describe students' understanding of physics concepts before using the TGT learning model assisted by Make It True software in Class XI IPA students at SMAN 13 Makassar.  To describe students' understanding of physics concepts after being taught using the TGT learning model assisted by Make It True software for Class XI Science students at SMAN 13 Makassar. The type of research used in this research is an experimental method using a research design, namely One Group Pre-Test Post-Test Design. The approach in this research is a quantitative approach. Data processing and data analysis techniques use descriptive statistical analysis, inferential statistical analysis. The results showed that the average value of the results Student learning in the pre-test was 34.71 in the very category low, while for the post-test score the average value was 50.15 is in the low category. Based on the results of non-parametric analysis  using the Mann-Whitney test which shows a significant level value, namely Asymp value. Sig (2-tailed) shows the number 0.000. Asymp value. Sig (2-tailed) smaller than the 0.05 significance level so that H0 is rejected and H1 is accepted. Matter This shows that there are differences in understanding the concept of use Application-assisted Teams Games Tournament (TGT) Learning Model Soft Ware Make It True