Visual-spatial thinking ability is an important ability for students in understanding and solving geometry problems. This study aims to develop a test instrument for students' visual-spatial thinking ability based on pattern batik Ceplok-Ceplok Jatipelem Jombang. This research is a development research (R (2) Reliability of respondents is categorized as sufficient, items are categorized as excellent, and the relationship between the two is categorized as good; (3) The level of difficulty of the test instrument varies at the easy, medium, and difficult levels. (4) The differentiating power of the questions is categorized as good and very good to use. So, it shows that the test instrument to measure the ability of visual-spatial thinking based on pattern batik Ceplok-Ceplok Jatipelem Jombang on geometric transformation material satisfies the criteria worthy to be used.
Al et al. (Fri,) studied this question.