The aims of this study were to find out: (1) Finding a quality HOTS ability test based on quality Realistic Mathematical Education (RME) assisted by Google Form on fractional material, (2) Describing the increase in students' HOTS ability with the help of Google Form. The subjects of this study were fourth grade elementary school students for the 2021/2022 academic year. In class IV SD Negeri 101999 Silinda as many as 34 students, as many as 4 students were used for initial field trials and as many as 30 students were used for field trials. This research uses Borg and Gall development research. Data collection techniques used are observation and tests. From the results of the study it can be concluded that the test instrument developed as a whole is of good quality with a reliability analysis of 0, 799 with high interpretation. The students' HOTS ability test results were in the "enough" category with an average of 67.17%. So it can be concluded that the RME-based HOTS ability test that was developed is categorized in good criteria and has a potential effect on students' mathematical HOTS abilities.
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