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All Journal HISTOGRAM: Jurnal Pendidikan Matematika Petrogas : Journal of Energy and Technology
Amiruddin Amiruddin
STT Migas Balikpapan
Chemical Engineering, Chemistry & Bioengineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy

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PENGGUNAAN SOFTWARE GEOGEBRA PADA MATAKULIAH MATEMATIKA I MATERI INTEGRAL Amiruddin Amiruddin; Esterina Natalia Paindan
HISTOGRAM: Jurnal Pendidikan Matematika Vol 4, No 2 (2020): Histogram
Publisher : STKIP Andi Matappa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31100/histogram.v4i2.806

Abstract

The research which aimed to discover the enhancement mathemtical understanding of STT Migas Balikpapan students in the integral material mathematics I course. The research was experiment research. The population was all of the students of STT Migas Balikpapan who take mathematics I in the first semester, the samples were selected one class by conducting purposive sampling techniques. The research instrument is a test description to measure the level of mathematical understanding of integral material. The design in this research was a quasi experimental design with one group pretest-posttest, the data obtained were anlyzed using the N-Gain Score. Based on the results of the research, the pretest average value was 38.33, after using geogebra the posttest average score was 74,17, with an N-Gain value of 0.62 in the medium category and for the interpretation of the effectiveness of N-Gain it was 62%  in other word geogebra is categorized as quite effective, so that this research can be concluded that the use of geogebra can improve students mathematical understanding of integral
PENYELIDIKAN TINGKAT PENGARUH PATAHAN GEOLOGI DENGAN ARAH RETAKAN DI JALAN RAYA: STUDI KASUS JALAN BESAR DI BALIKPAPAN Abdi Suprayitno; Amiruddin Amiruddin; Andrea Talaiftha; Reza Nur Maulidya
PETROGAS: Journal of Energy and Technology Vol 2, No 2 (2020): October
Publisher : Sekolah Tinggi Teknologi MIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58267/petrogas.v3i2.74

Abstract

Damage to roads in the Balikpapan area is a problem that recurs every year. The patchwork project is a scene in itself at the locations where roads are damaged. The causes of road damage have long been studied by researchers from the civilian field. Research related to the road structure and the underlying rock engineering conditions has been carried out. The purpose of this research is to prove that apart from the influence of the characteristics of the road structure and its rocks, the effect of geological fractures can also be considered. This study uses the main data to measure the direction of the road cracks and the direction of the geological fault. The data is then analyzed how far it affects one another. Based on the measurement data of the direction of the cracks on the highway and the drawing of geological structure straightness through satellite images which are then compared, the results show that there are similarities in the direction of the cracks and the geological structure in Balikpapan. These directions are Northwest - West - Southwest with Southeast-East-Northeast. Therefore, it can be concluded that the effect of cracks on the road has a direct influence on the geological structure in Balikpapan.
Co-Authors Abdi Suprayitno Andrea Talaiftha Esterina Natalia Paindan Reza Nur Maulidya