The arithmetic sequences in making traditional cast nets in Lombok

Elly Susanti, Elly Susanti ORCID: https://orcid.org/0000-0001-9528-4947 (2023) The arithmetic sequences in making traditional cast nets in Lombok. EDUMATIKA: Jurnal Riset Pendidikan Matematika, 6 (1). pp. 1-16. ISSN 2620-8911

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Abstract

Mathematical concepts can be found in the culture of the community, such as in daily activities and handicrafts. One type of handicraft is the pencar, a cast net (throw net) fishermen use to catch fish. This research aims to explore the arithmetic sequencesinvolved in making a pencar. This research uses qualitative research with ethnography. The studywas conducted in Marong Village, West Nusa Tenggara, Indonesia. Data were obtained by direct observation of the pencar and the process of making it, interviews with cast-net handcrafters, and literature studies on arithmetic sequences. The results of this study show that there are three arithmetic sequences in the pencar. The first sequence, the number of anak (meshes) between each anakan (widener) in the n-th widener row, is 3, 4, 5, and so on, formulated by Un= 3 + (n -1). In the second sequence, the number of anakan (widener) in the n-th widener row is 44, 45, 46, and so on, formulated by Un= 44 +(n -1). The third sequenceis quadratic;the number of lubang (meshes) in the n-th anakanis 44, 90, 138, 188, and so on, formulated byUn= n2+ 43n. The arithmetic sequences in pencarcan be used as a problem context for culture-based learning in the arithmetic sequence topic.

Item Type:	Journal Article
Keywords:	Arithmetic Sequence; Ethnomathematics; Lombok Handycraft; Tradisional Cast Nets
Subjects:	13 EDUCATION > 1399 Other Education > 139999 Education not elsewhere classified
Divisions:	Graduate Schools > Magister Programme > Graduate School of Mathematics Education
Depositing User:	Elly Susanti
Date Deposited:	30 Oct 2024 09:05

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