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All Journal Pythagoras: Jurnal Matematika dan Pendidikan Matematika Jurnal Pendidikan Matematika Jurnal Edukasi Universitas Jember KADIKMA Saintifika Prosiding Seminar Matematika dan Pendidikan Matematik JINOP (Jurnal Inovasi Pembelajaran) EDU-MAT: Jurnal Pendidikan Matematika Journal of Research and Advances in Mathematics Education Limits: Journal of Mathematics and Its Applications EDUPEDIA Al-Khwarizmi: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Proximal: Jurnal Penelitian Matematika dan Pendidikan Matematika Jurnal Pengabdian Masyarakat Khatulistiwa JURNAL BIOSHELL CGANT JOURNAL OF MATHEMATICS AND APPLICATIONS Pancaran Pendidikan Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya SAINTIFIKA Jurnal Ilmiah NOSI Journal of Digital Literacy and Volunteering
Arif Fatahillah
Universitas Jember
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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PEMODELAN MATEMATIKA ALIRAN DARAH PADA ARTERI KORONER AKIBAT PEMASANGAN STENT Amirullah, Iqbal; Fatahillah, Arif; Setiawan, Toto Bara
Kadikma Vol 10 No 1 (2019): April 2019
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v10i1.11726

Abstract

Coronary heart disease is a disease caused by accumulation of cholesterol that forms plaques on artery walls for a considerable period of time. Over time, this disease can cause the heart muscle to weaken, and cause complications such as heart failure. One of ways to treat coronary heart disease is the stent installation (rings) or commonly called angioplasty. Angioplasty aims to make the blood vessels narrow to open so that blood flow flows better. The emergence of mathematical modeling as a new science is one alternative to solve these problems. With mathematical modeling, practitioners can make a form of a formula that describes the state of blood flow in the coronary arteries according to actual conditions without ignoring important factors in the system. In this study a mathematical model was built based on the above problems to determine the effectiveness of stent installation or angioplasty in the process that occurs in coronary arteries. Keywords: Coronary heart disease, Mathematical modeling, Stent
PEMODELAN MATEMATIKA PADA PROSES PEMBEKUAN ES DI RUANG BRINE TANK PABRIK ES BALOK TALANGSARI JEMBER Sholihin, Akhmad; Fatahillah, Arif; Setiawan, Toto' Bara
Kadikma Vol 10 No 3 (2019): Desember 2019
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v10i3.17404

Abstract

One of the main activities of block ice production is the process of freezing ice blocks in the brine tank. Brine Tank is a tank that functions to freeze ice blocks. Brine Tank contains salt water. Mathematical modeling is a formulation of mathematical models that describe how to get a solution to a mathematical problem in a natural event. Mathematical modeling can form mathematical models that describe the process of ice freezing in brine tanks in accordance with actual conditions without ignoring important factors in the system. The mathematical model in the process of ice freezing in the Brine Tank is obtained from the momentum equation and the energy equation which is solved using the finite volume method. In this study a mathematical model was built to determine the effectiveness of time in the ice freezing process in the brane tank.
PEMODELAN WIND TURBINE ROTOR TIPE HAWT (HORIZONTAL AXIS WIND TURBINE) MENGGUNAKAN METODE VOLUME HINGGA Zahroh, Millatuz; Dafik, D; Fatahillah, Arif
Kadikma Vol 6 No 2 (2015): Agustus 2015
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v6i2.1983

Abstract

Abstract. A Wind turbine is a wind energy converters tool into electrical energy. To optimize the electrical energy converted, it needs for further research on wind turbine process. In this research, the analysis part of wind turbine is rotor, which is the contacted part to the wind. Type of wind turbine that will be analyzed in this study is HAWT (Horizontal Axis Wind Turbine) type because this model is the most often used type and can produce great electrical energy. This research construct a model of the air flow field form of wind turbine rotor and solve these problems by using the finite volume method. Model simulation process will be done by using MATLAB and FLUENT software. The analysis was performed with the variation initial velocity level of wind. It is 3 m/s, 5 m/s, and 7 m/s. The simulation results showed that the velocity of rotation wind turbine rotor blade higher when the initial wind velocity increases. Beside that, the result is when the initial wind velocity of 7 m/s and 5 m/s, the velocity of rotation wind turbine rotor blade tend to be more stable. With 5 m/s of wind velocity to wind turbine rotor, The difference between an average direct calculation and a SOR iterative calculation is obtained the value of relative error less than 0.1%. it is 0.079%. So the finite volume method of numerical methods is effective to solve this problem. Key Words : Electrical Energy, Finite Volume Method, Velocity, Wind Turbine,.
PENGEMBANGAN MEDIA PEMBELAJARAN INTERAKTIF ONLINE POKOK BAHASAN BARISAN ARITMETIKA BERBANTUAN MICROSOFT VISUAL BASIC Faruq, Fathulloh; Dafik, D; Suharto, S; Fatahillah, Arif; Murtikusuma, Randi Pratama
Kadikma Vol 9 No 2 (2018): Agustus 2018
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v9i2.9751

Abstract

Abstract. The purpose of this research was to produce a product to attract students’ interest in learning mathematics tested the validity, practicality, and effectiveness of using development interactive learning media of arithmetic squence. The role of technology in the field of education is not only limited to how to operate a computer, but is expected to be a solution to learning problems experienced by students and teachers. This research was processed through the stages of 4D that is define, design, development, and disseminate. This research was conducted in MAN 1 Jember which involved 32 students’ of class XII MIPA 2. The result of the research show that the development media is valid according to the material expert with the percentage of the archieved value 93,75% from validator I, 95,31% from validator II, and validator III gives 92,19% value. Effective media with learning test reasult followed 32 students’ in this research show 87,5% completed. Quationnaire showed a percentage of a 85,27% from student for practicality. Keywords: Development, Media, Technology
ANALISIS KEMAMPUAN BERPIKIR KRITIS SISWA DALAM MENYELESAIKAN MASALAH PERSAMAAN KUADRAT PADA PEMBELAJARANMODEL CREATIVE PROBLEM SOLVING Purwati, Ratna; Hobri, Hobri; Fatahillah, Arif
Kadikma Vol 7 No 1 (2016): April 2016
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v7i1.5471

Abstract

Abstract. Critical Thinking Skills is very important for us because critical thinking skills can be used to solve problems and as a judgement in right decision making. One of the methods used to equip students with critical thinking skills is using Creative Problem Solving (CPS) model in mathematics class. This research is a qualitative descriptive research aimed to describe the critical thinking skills of students in X-Class using CPS model in solving quadratic equations problems and the provision of scaffolding. The subject of this research is students of SMK N 2 Jember grade 10 (X-Class). The method of data collecting used in this research is critical thinking skills test and interview. Analysis of students critical thinking skills test is based on critical thinking skills indicat by Facione determined by the researcher. The results of this research showed that sudents critical thinking skills in X-TPM Class at SMK Negeri 2 Jember generally can be grouped into 3 categories are high, average, and low critical thinking skills. Students with high critical thinking skills satisfy all of crtitical thinking skills indicarors. Students with average critical thinking skills can only satisfy interpretation and analysis indicators. But less capable in evaluation and inference indicators. Whereas, the students with low critical thinking skills are less capable in interpreting the problem and they can't satisfy analysis, evaluation, and inference indicators. Keywords: Critical Thinking, Creative Problem Solving.
KETERAMPILAN BERPIKIR KREATIF PADA PEWARNAAN TITIK r-DINAMIS GRAF HASIL OPERASI EDGE CORONA GRAF LINTASAN Liowardani, Adelia Putri; Dafik, D; Fatahillah, Arif
Kadikma Vol 9 No 3 (2018): Desember 2018
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v9i3.10748

Abstract

Abstract This Research is development from vertex r-dynamic coloring for every simple and connected graph. Vertex r-dynamic coloring of graph G such that the neighbors of any vertex v receive at least min different colors. The r-dyanamic chromatic number written as . In this research we use edge corona product graph. Edge corona product of G and H as denoted by Let G and H is simple and connected graph, is obtained by taking graphs H as many copies edge of graph G and connected graphs H on two vertices edge of G. In this research will also related with creative thinking skills with four aspects as indicator. Those aspects are Fluency, Flexibility, Orisinality, and Elaboration. The results of this research is theorem about vertex r-dynamic coloring on edge corona product and related with creative thinking skills. Keywords: Vertex r-dynamic coloring, edge corona, creative thinking skills
ANALISIS SIRKULASI UDARA PADA TANAMAN KOPI BERDASARKAN TINGKAT KEKASARAN TUMBUHAN DAN POLA TANAM GRAF TANGGA PERMATA MENGGUNAKAN METODE VOLUME HINGGA Riastutik, Ervin Eka; Dafik, D; Fatahillah, Arif
Kadikma Vol 6 No 1 (2015): April 2015
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v6i1.1835

Abstract

Abstract. Coffee beans are one of Indonesian main export commodities. It can be seen from the amount of coffee exported to other countries, especially Europe. However, the vast area of coffee plantation does not make the productivity of the coffee beans become maximum. There are several factors which influence this condition. One of them is the cropping pattern of coffee plant and the air circulation that affect the pollination process of coffee flower. In this research, an air condition models was designed to solve the problem by employing Volume Hingga method. The models were designed based on the level of plant roughness, distance between coffee plants, and the cropping pattern of coffee (Diamond Ladder Graph). The results of the research is the mathematical models that influenced the level of plant roughness and the cropping pattern of coffee with angle. The symbol of plant roughness in this model is . Coefficient is limited at 0 until 1 (0< <1). The high value of plant roughness coefficient shows the high level of plant roughness. Key Words: coffee plant, air circulation, level of plant roughness, Volume Hingga Method, Diamond Ladder Graph.
TINGKAT BERPIKIR KREATIF SISWA DALAM MEMECAHKAN PERMASALAHAN POLA BILANGAN DAN GENERALISASINYA MELALUI PEMBELAJARANBERBASIS GUIDED DISCOVERY LEARNING Fatahillah, Arif; Trapsilasiswi, Dinawati; Aiyunin, Qurrota
Kadikma Vol 8 No 1 (2017): April 2017
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v8i1.5257

Abstract

Abstract. This study aims to describe the level of students' creative thinking in solving problem of pattern numbers and it's generalization trough learning based on guided discovery learning. The type of this research is descriptive research with qualitative approach. The data collection method used was test method, observation method, and interview method. The level of students' creative thinking was grouped into five, namely TBK 4 (very creative), TBK 3 (creative), TBK 2 (quaite creative), TBK 1 (less creative) and TBK 0 (not creative). The subjects of the study were the students in class IX C SMP Nuris Jember which amounted to 38 students. The results showed that seventeen students with creative thinking level 4 qualified all creative thinking components that is fluency, flexibility, and novelty. Five students with a level of creative thinking 3 qualified two creative thinking components that is fluency and flexibility. One student with creative thinking level 2 only qualified one creative thinking components that is flexibility. Nine students with creative thinking level 1 only qualified one creative thinking components that is fluency. Six students with creative thinking level 0 did not qualify any components of creative thinking. Keywords: Level of Creative Thinking, Problem Solving , Guided Discovery Learning
ANALISIS SIRKULASI UDARA PADA SISTEM PERNAFASAN MANUSIA MENGGUNAKAN METODE VOLUME HINGGA Putra, Andhi Septian Hadi; Suharto, Suharto; Fatahillah, Arif
Kadikma Vol 8 No 2 (2017): Agustus 2017
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v8i2.6818

Abstract

Abstract. In human respiration there are several factors that can affect the speed of air flow. This study describes the effect of initial velocity and Prandtl numbers on the velocity of airflow in the human respiratory system. In this study built airflow equations in the human respiratory system built from the mass continuity equation, changes in momentum and energy using the volume method up. Then made a disctritization of the flow of air circulation in the human respiratory system. Next make the air circulation program on the human respiratory system using MATLAB and FLUENT applications. The result of this research is airflow equation with error less than 1% and air circulation simulation program on human respiratory system. Keywords : Air Circulation, Finite Volume Method
PENERAPAN PEMBELAJARAN PROBLEM BASED INSTRUCTION (PBI) UNTUK MENINGKATKAN HASIL BELAJAR SISWA PADA POKOK BAHASAN TRIGONOMETRI DI KELAS X IPA 2 SEMESTER GENAP SMA NEGERI ARJASA TAHUN AJARAN 2013 -2014 B, Girlda Elynikie; Trapsilasiwi, Dinawati; Fatahillah, Arif
Kadikma Vol 6 No 2 (2015): Agustus 2015
Publisher : Department of Mathematics Education , University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/kdma.v6i2.1988

Abstract

Abstract. The problem based learning model or known as Problem Based Instruction (PBI) always presents problems in real life context. This learning model has brought the students to get involved in the process of finding and investigating. The steps in this learning model were directing the students to the problems, organizing the students to learn, helping independent and group investigation, developing and presenting artifact and exhibits, and also analyzing and evaluating of problem solving. This research applied two cycles covering planning, action, observing, and reflection. The Approach used in this research was qualitative approach. This research was a Class room Action Research Design (CAR). This research design was adopted from Hopkin’s, which each cycle has four phases or steps, those are planning, action, observing, and reflection, and then continued to the following cycle. Data collection method used in this research was test, observation, documentation, and interview. Acording to the observation, the students individual activity from the first up to the fourth meeting is 69,87%, 72,22%, 74,3% and 79,72%, and the students group activity from the first up to the fourth meeting is 75,27%, 76,13%, 80,83% and 91,1%. The percentage of the students who achieved the target was 82.5%, with 7 students were failed in the first cycle. In the second cycle, the percentage of the students who achieved the target was 95% with 2 students were failed. Key Words : Problem Based Instruction, Achievements
Co-Authors Adelia Putri Liowardani Ahmad Syaiful Rizal, Ahmad Syaiful Aiyunin, Qurrota Amirullah, Iqbal Anka Monalisa, Lioni Antonius Cahya Prihandoko Arif Wicaksono Arif Wicaksono Arika Indah Kristiana Arnasyitha Yulianti Soelistya Ayu Lestari,, Lisa Azza Liarista Anggraini Brahmanto, Juanda D. Dafik Devi Permatasari Didin Trisnani, Didin Dinawati Trapsilasiwi Diona Amelia, Diona Dody Dwi Aprianto Elsa Yuli Kurniawati Ervin Eka Riastutik, Ervin Eka Excelsa Suli Wildhatul Jannah Faruq, Fathulloh Fatimah, Laila Nurul Fatoni, Muhamad Faizal Fauziyah, Faridah Flavia Aurelia Hidajat, Flavia Aurelia Girlda Elynikie B, Girlda Elynikie Hobri Irsalina Dwi Puspitasari Joni Susanto, Joni Kamalia Fikri Kusumaningtyas, Nastiti Latifah, Izza Wardatul Lestari, Harin Tripuji Lioni Anka Monalisa, Lioni Anka Liowardani, Adelia Putri Lusia Dewi Minarti Lusia Dewi Minarti Madinda, Diah Putri Maharani, Dewi Masyhudi, Muhammad Ali Maulina Syamsu Widyaharti, Maulina Syamsu Maya Margaretha, Puspita Millatuz Zahroh, Millatuz Moch. Avel Romanza P, Moch. Avel Romanza Mochammad Ulin Nuha Mohammad Fadli Rahman Nafisa Afwa Sania Nisa, Choirotun Niswatul Imsiyah Nisyak, Robiatun Novian Nur Fatihah Nur Alfiyantiningsih Nurcholif Diah Sri Lestari Permatasari, Putri Ayu Pradista, Vyke Triawilly Prisma Brilliana Priyanti, Nanda Rahma Purwati, Ratna Puspitasari, Irsalina Dwi Putra, Andhi Septian Hadi Putri, Chika Ramadhanty Twine Ayu Q Qoriatul Qothrunnada, Isni R. Azmil Musthafa, R. Azmil Rafiantika Megahnia Prihandini Randi Pratama Murtikusuma Randi Pratama Murtikusuma Ridho Alfarisi Ridho Alfarisi, Ridho Robiatul Adawiyah S Slamin S Suharto S Sunardi S Susanto Saddam Hussen Saddam Hussen Safira Izza Ghafrina Safira Izza Ghafrina Safitri, Fihrin Luqiyya Septiyan Roby Pratama, Septiyan Roby Setiawan, Renal Heldi Setiawan, Susi Setiawan, Toto’ Bara Setyowati, Henny sholihin, akhmad Siska Aprilia Hardiyanti Siska Binastuti Slamet Hariyadi Soleh Chudin Sufirman Sufirman Suharto Suharto Susanto Susanto Susi Setiawani Susi Setiawani Swasono Rahardjo Theriq Azis Al Husein Titik Sugiarti Titin Kartini Toto Bara Setiawan Trapsilasiswi, Dinawati Umi Azizah Anwar Vahad Agil Liyandri Viantasari, Erwinda Vutikatul Nur Rohmah Wati, Yuli Fajar WIHARDJO, EDY Wiharjo, Edy Yafi, M. Ali Yuli Kurniawati, Elsa Zainul Arifin