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| Exploration of Ethnomathematics of Hadrah Musical Instruments as an Exam Material for Elementary School Students |
Mohammad Alba Fuad Hasan, Titik Sugiarti, Ridho Alfarisi
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Abstract:
Ethnomathematics is a science used to understand how mathematics is adapted from culture. This can help students understand mathematical concepts while learning about the culture of the surrounding environment. This study aimed to describe ethnomathematics on hadrah musical instruments and make an exam kit. This is a qualitative research with an ethnographic approach. Data collection methods used were observation and interviews. The subjects of the study were a craftsman and a hadrah musical instrument player. Ethnomathematics on hadrah instruments include tambourine, jidur, dumbuk, and keprak. The results of research showed that tambourine and keprak musical instruments have mathematical elements namely frustum of a cone and concept of a circle. In jidur instrument, there were mathematical elements namely frustum of a cone, circle, and congruence. In dumbuk musical instrument, there were mathematical elementss of congruence, and the combination between tube and frustum of a cone. The exam kit is a tool for knowing and evaluating students' learning outcomes in which it has exam content outline, exam questions, answer sheets, answer keys, and assessment rubrics. The exam kit made in this research was a collection of geometric material questions about plane and solid regarding ethnomathematics in hadrah musical instrument.
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