Abstract
Mathematical representation ability is an important mathematical skill. It can be trained by using a student worksheet as a learning resource. This research aimed to develop and produce valid, practical, and effective student worksheets which were based on metacognitive approach to improve students’ mathematical representation ability. This research used the 4-D model (Define, Design, Development, and Disseminate). This research was conducted at a secondary school in Pekanbaru, Indonesia. The research participants were seventh-grade students at the school. Data collection instruments were questionnaires and mathematical representation ability test. Data were analyzed using descriptive statistical analysis technique. The result showed that the worksheets were very valid, very practical and very effective. The validity rate was of 81.71%, the practicality rate was 82.30% and the effectiveness rate was 83.33%. Hence the worksheets can be used in mathematics learning to improve student’s mathematical representation ability.
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