This research aimed to determine the effectiveness of the Problem Based Learning model on students’ learning outcomes in Indonesian language procedural text material for fifth grade students at SDN Palebon 03 Semarang. This study used a Pre-Experimental Design with a One Group Pretest-Posttest Design. The subjects of this research were 26 fifth grade students. Data collection techniques included tests, observation, interviews, and documentation. Data were analyzed using the normality test, Wilcoxon Signed Rank Test, and classical learning completeness analysis. The results showed that the average pretest score of 62.1 increased to 93.6 in the posttest. The Wilcoxon test results indicated a significance value of 0.000 < 0.05, which means there was a significant difference between students’ learning outcomes before and after the implementation of the Problem Based Learning model. In addition, classical learning completeness increased from 19.23% to 92.31%. Therefore, it can be concluded that the Problem Based Learning model was effective in improving students’ learning outcomes in Indonesian language procedural text material for fifth grade students at SDN Palebon 03 Semarang.
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