The Development Of Higher Order Thinking Skills Test Of Geometry Based On Realistic Mathematics Education For Fifth Grade Elementary School At Tanjung Pura

. This study aims to: produce a HOTS test of geometry that is valid, effective and practical to use in fifth grade elementary school. This research is a development research of Tessmer's formative evaluation type which has been adapted which consists of two stages, namely; (1) preliminary stage, and (2) formative evaluation stage which includes self-evaluation and prototyping. The results showed that the HOTS test of geometry based on realistic mathematics education that had quality from the aspects of validity, effectiveness and practicality had 15 questions consisting of 11 multiple choice questions and 4 essay questions. The test validity coefficient is 0.69 (high validity) and the test reliability coefficient is 0.81 (very high reliability). Effective based on the achievement of learning objectives reaches 80%, 88% classical completeness, 85% positive response from students and efficient learning time. Practically based on the assessment of experts who stated that the questions were feasible and could be used and, the teacher's response obtained an average score of 88.89% (practical).