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The aim of this research was to photograph the application of the guided inquiry model (GIM) with puzzle media to students' critical thinking skills (CTS). The used design was the enrollment of pretest posttest non-equivalent control group. The research sample was VIIB class students as the experimental class and VIIC class as the control class who were selected through cluster random sampling technique. The research data was presented in the form of quantitative data, namely the average pretest, posttest, and N-gain values which were then analyzed by statistical t-test with a significance level of 5% using SPSS 22. The results showed that the GIM model media puzzle has a significant effect on students' CTS with an average of N -the experimental class gain was higher (0.45) while the control class (0.22), and sig. 0.00 < 0.0. Thus, it can be concluded that learning science using GIM with puzzle media has a significant effect on students' CTS.
Yolida et al. (Sat,) studied this question.