Students’ responses to the test instruments on geometry reasoning ability in senior high school

This study aims to determine students’ responses to the geometry reasoning ability test instruments in high school. The research instrument used was the student response questionnaire to the test of geometrical reasoning ability. The study subjects took 28 students of grade XI. The data was obtained after the students having examined with the instrument test of geometrical reasoning ability. The research procedures include; first, the researcher gave the students questionnaire responses after they were asked to do a test of geometrical reasoning ability. Second, the researcher collected data obtained from the students’ response questionnaire. Third, the researchers conducted data analysis by calculating percentages to find out the number of student responses. Fourth, the researchers draw conclusions. The results of the analysis show that the students’ response to the geometry reasoning ability test instruments were very well. Most students show a positive response to the instrument, according to the language used in the instrument is easy to understand, the design of drawings and colors are interesting, and the materials used were adjusted to the level of ability of high school students.