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Abstract

This research was aimed to determine the magnitude of the increase in student’s conceptual understanding through modeling instruction on temperature and heat material. The subjects of this study were students of SMAN 2 Batu in XI grade which amounted to 65 students. The research design used one group pretest - posttest design which was analyzed quantitatively. Data obtained from the pretest and posttest values are then presented in percentage and statistics. Data was presented through calculation of the average number of students in each indicator, then it was calculated statistically by using the Kolmogorov – Sminorv as normality test, Wilcoxon signed rank for difference test, then followed by N-gain test and effect size to determine the magnitude of increase and influence on variables. The results showed that there was an increase of 0.24 (low category) at the posttest value of students after modeling instruction in the class. The magnitude of the influence of modeling instruction on increasing student’s conceptual understanding is equal to 0.69 which falls into the sufficient category.

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