This study aims to analyze the effect of using interactive technology-based learning media Wordwall on improving understanding of mathematical concepts in inclusive students with intellectual disabilities in UPT SDN 060817 Medan. This study uses a quantitative approach with the Single Subject Research (SSR) method and A-B design, consisting of a baseline phase (A) and an intervention phase (B). The subject of the study was one inclusive student in grade III who was identified as having difficulties in understanding mathematics material. In addition, the study also involved homeroom teachers and parents of students as supporting informants in the data collection process. The research instrument was direct observation of student learning outcomes during both phases. The results of visual data analysis showed that in the baseline phase, students' ability to understand the material was at a low and relatively stable level. However, after the intervention using Wordwall media, there was a significant and consistent increase in learning achievement. Interactive features, attractive visual displays, and direct feedback from Wordwall have been proven to be able to increase the subject's attention and understanding of learning materials. Although this study was conducted on one subject, these findings indicate that Wordwall media has the potential to be an effective learning aid, especially in supporting the learning process of inclusive students with intellectual disabilities in elementary schools.
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