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All Journal Eduma : Mathematics Education Learning and Teaching MATHEdunesa
Sofhya, Herlinda Nurafwa
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Education Mathematics Other

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Comparison of Agglomerative Hierarchy Methods in Grouping Cities in West Java Based on Gross Regional Domestic Product Sofhya, Herlinda Nurafwa
EduMa: Mathematics education learning and teaching Vol 12, No 1 (2023)
Publisher : Jurusan Tadris Matematika IAIN Syekh Nurjati Cirebon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24235/eduma.v12i1.13216

Abstract

Economic development can be seen through the size of the Gross Regional Domestic Product (GRDP) of a region. Based on the Gini ratio, it can be seen that the economic gap in  is still quite high and continues to increase from 2019. This cannot be allowed to continue, this gap needs to be reduced. Therefore, the West Java government needs to focus on improving the economy in areas with low economic conditions. One of the main indicators of the economic condition of a region is the amount of GRDP. In this research, cities in West Java are grouped based on GRDP using the agglomerative hierarchy method. The agglomerative hierarchy methods used are single linkage, average linkage and complete linkage methods. Then the three methods are compared based on the standard deviation ratio value. The results of data analysis show that the complete linkage method has a smaller standard deviation ratio value than the single linkage and average linkage methods, which is 0.109016. This means that the best method performance of the three agglomerative hierarchy methods used is the complete linkage method
Eksplorasi Etnomatematika pada Bangunan Keraton Kacirebonan Sofhya, Herlinda Nurafwa; Az-zahwa, Salma
MATHEdunesa Vol. 13 No. 3 (2024): Jurnal Mathedunesa Volume 13 Nomor 3 Tahun 2024
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/mathedunesa.v13n3.p779-792

Abstract

This research is an exploration of Philosophical values and Mathematical Concepts in the building design of Kacirebonan Palace. This research was conducted in order to respond to changes in the independent curriculum in accordance with Kepmendikbudristek number 56 of 2022 which requires education units to add local content. Local content can be added through integration with other subjects, through Pancasila profile projects, or stand alone as a subject. The results of the exploration of ethnomathematics in the Kacirebon palace building can be a reference in integrating local content in mathematics subjects. Data collection through interviews with palace servants and relatives of the palace and direct observation at the Kacirebonan palace. Based on the results of the study, most of the philosophical values contained are religious values in accordance with Islamic teachings. This philosophical value is contained in the building structure, layout, building names, and reliefs or carvings on the walls of the palace. The mathematical concepts that exist in the design of the palace buildings are mostly the concept of geommetry, especially the geometry of spaces such as pyramids and prisms, this is illustrated from the roof shape of the palace. In addition to the concept of geometry there are also geometry transformations such as mirroring on most of the palace gates, and the concept of congruence on the window vents of the kacirebonan palace.
Co-Authors Az-zahwa, Salma