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Development of Module of Learning Geometry Based on Van Hiele Theory Deshinta Puspa Ayu Dwi Argaswari
AKSIOMA : Jurnal Matematika dan Pendidikan Matematika Vol 9, No 2 (2018): AKSIOMA : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/aks.v9i2.2559

Abstract

The aim of this research was to develop a teaching and learning module using Van Hiele theories for quadrilateral topics in grade VII students in middle school, which is valid, practical, and effective. Literatures explain that nowadays the students over generalize the concept of geometry without further understanding about the concept of geometry and the skills of proving and reasoning that geometry field try to improved. The method used was research and development with modification of Borg and Gall and Plump method. The initial investigation stage result stated that only 22.6% of students reached level 2 informal deduction, 35.5% students reached level 1 analysis and the rest of students were still in level 0 visualization. In order to solve this problem, the design and realization stages developed a module which was written based on phase of learning geometry. Next, the module was verified through trial test in a class of students grade VII in order to get data of validity and effectivity. Lastly, the module was tested through experimental research by comparing experimental and control class. The module was valid based on validator review. The module was effective because it can increase students geometry thinking level by 48%. The nonparametric test using K-S and Man Whitney show that the result of level of geometry thinking in experimental class was better than the control class. Overall result state that the module valid and effective.
MATHEMATICS SPATIAL ANALYSIS FOR OPTIMIZATION THE FIRE FIGHTING STATION PLACEMENT IN SOUTH JAKARTA, INDONESIA Ngarap Imanuel Manik; Maryuri Septreziera; Deshinta Puspa Ayu Dwi Argaswari
EPSILON: JURNAL MATEMATIKA MURNI DAN TERAPAN Vol. 16(2), 2022
Publisher : Mathematics Study Program, Faculty of Mathematics and Natural Sciences, Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/epsilon.v16i2.6533

Abstract

This research aims to apply the spatial analysis to optimize the placement of firefighting units in the area of South Jakarta. The calculation and pre-analysis shown that there are some uncovered service areas at South Jakarta. Therefore, the recalculation and analysis help to find out the strategic new possible location for the fire station. Optimalization of the location of the new fire station is conducted by calculating the minimum time travel from help point to fire point. Other than that, the minimum time travel also calculated based on actual blocks and crowd. After that, the optimizing the location of the fire unit is determined by the support of a planning tool known as ArcView. It is a Geographic Information System (GIS) through the formulation of a mathematical and accessibility model. Through the new analysis with considering the actual fact and using the technology, the results showed that to optimize of the entire range of the South Jakarta area another ten new posts of firefighting unit need to be added.
PROOF OF ALGEBRAIC STRUCTURES (RINGS AND FIELDS) WITH JAVA PROGRAMMING Ngarap Imanuel Manik; Deshinta Puspa Ayu Dwi Argaswari
EPSILON: JURNAL MATEMATIKA MURNI DAN TERAPAN Vol 17, No 1 (2023)
Publisher : Mathematics Study Program, Faculty of Mathematics and Natural Sciences, Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/epsilon.v17i1.8580

Abstract

Many branches of algebraic structures, such as rings and fields, are difficult to comprehend and undesirable due to their abstract character. The testing of algebraic structures can be aided by a computer software application, which makes it simpler and more fun to learn algebraic structures. This program is expected to make algebraic structural proofing easier, faster, and more accurate than manual proof. Users and the software in the application are connected through the Cayley table. The Java programming is just used to demonstrate the algebraic structures of rings and fields. The application program's proof results for the subject showed correct results with a quick processing time when compared to manual processing.