This is a pre-experimental research in One-Group Pretest–Posttest Design. The population comprised all fourth-grade students at SD Negeri 242 Padaelo, totaling 20 students. Saturation sampling was used, so the entire population served as the study sample. Data were collected through tests in the form of a pretest and a posttest. Data were analyzed using descriptive and inferential statistics. Descriptive analysis indicated that the mean posttest score (85.00) was higher than the mean pretest score (54.25). Hypothesis testing using a paired-sample t-test produced a probability value (p) of 0.000 (p < 0.05), so H0 was rejected and H1 accepted, indicating a significant difference between pretest and posttest learning outcomes. Based on these results, it can be concluded that the use of the Word Square learning model assisted by picture media has an effect on the IPAS learning outcomes of fourth-grade students at SD Negeri 242 Padaelo.
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