Abstract
Abstract
This research is descriptive qualitative research. This study aims to analyze students’ mistake in solving problems of surface area and volume on the prism and pyramid then to expose the causal factors. The subject of this research was 29 students in 9th class of one junior high school in Bandung, that was chosen by purposive sampling technique. Data was collected from students through validated essay tests and interviews. The data was analyzed by descriptive method. The results show that some of students (1) did not understand the problems, (2) could not represent the prism and pyramid in other form, (3) did some error in using formula of surface area and volume of prism and pyramid, (4) did some error in calculations and (5) had misconceptions. The causal factors were students were not accustomed to identify and write what known and asked when solving a mathematical problem, difficulty in reading information, did not understand concept of the prism and pyramid, carelessness in calculation, haste in answering questions, and lack of effort.
Subject
General Physics and Astronomy
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