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All Journal Jurnal Mandiri IT Unnes Journal of Mathematics Education
Maulana, Dimas Fajar
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Computer Science & IT Library & Information Science Mathematics

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Influence of TANDUR Learning to Students's Mathematical Representation and Student Self-Concept Maulana, Dimas Fajar; Rosita, Cita Dwi
Unnes Journal of Mathematics Education Vol 6 No 3 (2017): Unnes Journal of Mathematics Education
Publisher : Department of Mathematics, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujme.v6i3.19523

Abstract

This study aims to determine the effect of learning model TANDUR on the ability of mathematical representation and selfconcept of students and to know the correlation between the ability of mathematical representation and selfconcept. This research is a quantitative research using an experimental method. The research design is True Experimental Design with PretestPosttest Control Group Design. The population in thisstudy is all students of class X which amounted to 350 students in one of the SMA Negeri in Cirebon city. From the population is taken the sample using simple random sampling technique as many as 60 students are divided into two groups namely groups who get TANDUR learning and groups that get conventional learning. The results showed that the TANDUR learning model had an effect of 66.9% on the selfconcept of the students, while the students' mathematical representation ability was 75.5%. Meanwhile, the correlation between selfconcept and student's mathematical representation is 74,3%.
Decision support system for purchasing light fire extinguisher brands (APAR) on household needs using the weighted product (WP) method Maulana, Dimas Fajar; Heryana, Nono; Ridwan, Taufik
Jurnal Mandiri IT Vol. 12 No. 3 (2024): January: Computer Science and Field.
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/mandiri.v12i3.252

Abstract

Fire, as a serious disaster with destructive impacts involving loss of material and human lives, is mainly triggered by electrical short circuits due to massive construction and the use of cables that do not comply with standards. The importance of developing electric power that complies with safety standards to protect people and property cannot be overstated. Electrical integration is aimed at increasing system efficiency, but electrical short circuits remain the main cause of fires, accounting for 45% of cases in Indonesia in 2021. To reduce the risk, preventive measures are needed such as repairing the electrical network, using standard equipment, and educating the public. A light fire extinguisher (APAR) is one of the highly recommended fire prevention media. The appropriate APAR for household needs is the Chemical Powder / Dry Cemical type because it is almost effective for all classes of fires, especially for electrical short circuits. But in purchasing we are faced with the many brands available as well as limited needs, desires and financial capabilities. In this context, a web-based Decision Support System (DSS) was developed using the Weighted Product (WP) method to select the Brand of Light Fire Extinguisher (APAR). The WP method gives weight to the criteria of price, quality and reliability, helping households choose an APAR that suits their needs and budget. The application of this method is expected to minimize errors in selecting the APAR brand, increase accuracy, and make it easier to use for those who want to make a purchase. This SPK makes a positive contribution in helping users make APAR purchasing decisions that suit their needs and preferences.
Co-Authors Cita Dwi Rosita Heryana, Nono Taufik Ridwan, Taufik