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Dhanar Dwi Hary Jatmiko
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Jalan Kalimantan No. 37 Kampus Bumi Tegalboto, Jember, Jawa Timur
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INDONESIA
KADIKMA
Published by Universitas Jember
ISSN : 20850662     EISSN : 26863243     DOI : -
Core Subject : Education,
Mathematics
KadikmA (p-ISSN: 2085-0662 dan e-ISSN: 2686-3243) adalah jurnal nasional bidang Matematika dan Pendidikan Matematika yang diterbitkan oleh Program Studi Pendidikan Matematika, FKIP, Universitas Jember. Kadikma terbit 3 kali dalam setahun pada bulan April, Agustus dan Desember. Jurnal Matematika dan Pendidikan Matematika (Kadikma) berfokus pada penelitian matematika murni, matematika terapan, dan pendidikan matematika melalui artikel yang relevan. Jurnal Matematika dan Pendidikan Matematika (Kadikma) menyambut baik setiap artikel tentang penelitian matematika murni, penelitian matematika terapan, penelitian pendidikan matematika di dalam kelas yang relevan, mengevaluasi dan melaporkan praktik pendidikan guru dalam pembelajaran matematika, meninjau masalah topikal dan melaporkan keberhasilan dalam pendidikan matematika.
Arjuna Subject : Matematika - Matematika Terapan
Articles 15 Documents
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Search results for , issue "Vol 6 No 2 (2015): Agustus 2015" : 15 Documents clear
ANALISIS KECEPATAN ALIRAN HIDROGEN PEROKSIDA (H2O2) PADA STERILISASI SALURAN AKAR GIGI MENGGUNAKAN METODE NUMERIK VOLUME HINGGA Hardiyanti, Siska Aprilia; 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.v6i2.1981

Abstract

Abstract. The sterilization of tooth root canal is one of phases at treatment of endodontic or pulp treatment or commonly called tooth root canal treatment. This treatment is necessary because over the years many doctors assumed cavities tooth that cause pain and can not cure, should be pulled out. Endodontic treatment is the appropriate treatment for patient. Endodontic treatment is one of the measures to maintain the tooth in the mouth as long as possible when the pulp tissue has been infected. This research construct a model of tooth root canal and solve sterilization problem by using the finite volume method. Model of simulation process is solved using MATLAB and FLUENT software. The model which is constructed based on direction syringe spray and impeller pressure. Based on the result of the research, if angle of syringe spray is getting greater then the velocity is getting lower, if the angle of syringe spray is getting smaller then the velocity is getting higher. If the value of impeller pressure is more than 6 Pa then velocity is higher, if the value of impeller pressure is less than 6 Pa then velocity is negative value, whereas if the value of impeller pressure is 6 Pa then velocity is moderate value and the change of domain length of tooth root canal is not to great, so the spreading of velocity is evenly. Key Words : Treatment of endodontically, Sterilization of Root Canals, Angle of Syringe Spray, Impeller Pressure, Finite Volume Method.
ANALISIS KECEPATAN ALIRAN UDARA PADA GEDUNG BERTINGKAT KARENA PENGARUH PENGHALANG DI DEPANNYA Susanto, Joni; 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.v6i2.1986

Abstract

Abstract. The air flow velocity is one of many factor which should be considered in building a skyscraper. This is because the air flow velocity can affect the comfort of house room. The method which is used to solve the air flow analysis is a finite volume withusing Quadratic Upwind Interpolation Convective Kinematics (QUICK) discretization technique. Finite volume method is used to obtain a mathematical model of air flow velocity and QUICK is used to discretize it such that it will yield a linier equation system in a matrix of size (mn)×(mn). To simulate the air flow analysis is used Matlab and Fluent softwares. The result show that if the barrier is higher the air flow velocity will be decreased and if the distance of barrier is longerthe air flow velocity will be increased. It can be conclude that this analysis can be applied to have a comfort house room. Key Words : air flow velocity,mathematic model, finite volume method,QUICK
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,.
ANALISIS DESKRIPTIF SOAL MATEMATIKA PADA SELEKSI PENERIMAAN PESERTA DIDIK BARU SMA/SMK TAHUN AJARAN 2012/2013 DAN 2013/2014 KABUPATEN JEMBER Nurandari, Devira Ayu; Setiawan, Toto' Bara; Kristiana, Arika Indah
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.v6i2.1991

Abstract

Abstract. The goal of this research aims to describe mathematics test on the new students’ environment of senior high and vocational schools in the 2012/2013 and 2013/2014 academic year in Jember. The descriptions are about cognitive level of revised of Bloom’s taxonomy and characteristic of questions. The cognitif level was determined based on the indicators made by the researcher. Validity, reliability, difficulty index, and discriminatory power of the questions were calculated based on the result of the test. Cognitive level, validity, and discriminatory power of the questions in 2012/2013 academic year are bad but its reliability and difficulty index are good. Cognitive level, validity, difficulty index and discriminatory power of the questions in 2013/2014 academic year are bad but its reliability is good. Key words: new students’ environment, revised of Bloom’s taxonomy, characteristic of questions
ANALISIS SIRKULASI UDARA PADA TANAMAN KOPI BERDASARKAN POLA TANAM GRAF PRISMA DAN TINGKAT KEMIRINGAN BATANG MENGGUNAKAN METODE VOLUME HINGGA P, Moch. Avel Romanza; 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.v6i2.1984

Abstract

Abstract. Coffee bean is one of the superior agricultural products in Indonesia. One of the factors that affect the productivity is the cropping pattern of coffee plants. A well organized cropping pattern will make a well organized air circulation which affects the productivity of coffee beans. In this research, a model of air circulation is built based on prism graph for the cropping pattern and solved by using Finite Volume Method (FVM). The model simulation process is done by using MATLAB and FLUENT software. The model is built according to the slope of stem and the temperature of coffee plantation. The temporary result of the research shows that prism graph cropping pattern results good air circulation and also gives good effect to the air circulation around the coffee plantation. The same thing happens to the effect of the slope of stem, the more upright the coffee plant is, the better air circulation and vice versa. Key Words : Coffee plants, air circulation, prism graph, Finite Volume Method (FVM)
PENGEMBANGAN PERANGKAT PEMBELAJARAN MATEMATIKA DENGAN METODE IMPROVE BERBASIS PEMECAHAN MASALAH MODEL POLYA SUB POKOK BAHASAN LINGKARAN KELAS VIII SMP SEMESTER GENAP TAHUN AJARAN 2013/2014 Sari, Erna Yunita; Sunardi, S; Susanto, S
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.v6i2.1992

Abstract

Abstract: The goal of this research aims to know the process and the result of the development of Mathematics Learning Instruments by using IMPROVE method based on Polya’s problem solving model in sub topic of circle at the second semester of the eighth grade students of junior high school in the 2013/2014 Academic Year. Learning instruments development model refers to four D models. The products of this research are lesson plan, student book, worksheet, and evaluation test. The products refer to the phases of IMPROVE method based on Polya’s problem solving model. The subject of the research is students of grade VIII D SMPN 14 Jember. The data collection methods used in this research are the validation, test, observation, and questionnaire. Based on the validation process try out of learning instruments, it can be concluded that the learning instrumets have satisfied criteria the validity, practicality, and effectiveness. Key words: IMPROVE Method, Polya’s problem solving model, circle
PENERAPAN PEMBELAJARAN PEMECAHAN MASALAH MODEL POLYA UNTUK MENYELESAIKAN SOAL-SOAL APLIKATIF POKOK BAHASAN SEGI EMPAT PADA SISWA KELAS VII F SMP NEGERI 9JEMBER SEMESTER GENAP TAHUN AJARAN 2013/2014 Pratama, Septiyan Roby; Hobri, H; 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.v6i2.1985

Abstract

Abstract. Polya model is one of problem solving model that help the students for solving applicative math problems. Furthermore, Polya defines problem solving as an attempt to find the way out from one difficultness, and reach the unreachable objective that cannot be solved at once. The research aims are (1) how do the Polya problem solve appliment solve the applicative questions, (2) how do the activities of the students as long as Polya problem solve appliment occur to solve the applicative questions, (3) how do the student learn finishment after Polya problem solving appliment occur to solve the applicative question. The results showed improvement of the results of work of students using the Polya Model to solve the problem about applicative questions from first cycle to the next cycle. The research subjects are for analyzing qualitative and quantitative data. The research result shows that category activity in the “rexamine” and “presentation” are the lowest. The learning activity result in the first cycle are 64,1% student complete and not fulfill the classical absorptive power because of ≤ 70%. The second cycle result is increasing of learning result for 79,49% which means has reached classical complement. So, the research has fulfilled the research aims. Key Words : Polya Model Problem Solving, Students Activity,Result of Students’s Learning.
TINGKAT KEMAMPUAN BERPIKIR KREATIF MATEMATIKA SISWA SMP KELAS VIII DI SMP NEGERI 6 JEMBER, SMP AL FURQAN 1, SMP NEGERI 1 RAMBIPUJI, DAN SMP PGRI 1 RAMBIPUJI Arifani, Nurul Hidayati; Sunardi, S; Setiawani, Susi
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.v6i2.1993

Abstract

Abstract. The research aims to measure the level of creative thinking ability of math for Junior High School students in 8th year class especially in SMP Negeri 6 Jember, SMP Al Furqan 1, SMP Negeri 1 Rambipuji, and SMP PGRI 1 Rambipuji. The research methods are test with open ended problems and interview. The research shows that 2,84% students are in very high level of creative thinking, 2,84% are in high level of creative thinking, 21,49% are in the middle level of creative thinking, 29,75% are in low level of creative thinking, and 43,80% are in very low level of creative thinking among total 121 students. This shows that the creatitive thinking of math for students in 8th year class especially in SMP Negeri 6 Jember, SMP Al Furqan 1, SMP Negeri 1 Rambipuji, and SMP PGRI 1 Rambipuji are still low. Key Words: creative thinking, open ended problems
ANALISIS BUKU SISWA MATEMATIKA KURIKULUM 2013 UNTUK KELAS X BERDASARKAN RUMUSAN KURIKULUM 2013 Widyaharti, Maulina Syamsu; 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.v6i2.1994

Abstract

Abstract: In 2013, there were changes of curriculum in Indonesia. The name of new curriculum is 2013 curriculum. The difference of 2013 curriculum is the student book has been provided by The Goverment. Analysis on student book is needed for reviewing the suitability of student book by 2013 curriculum formulation. Analysis was done based on four criteria, that are competence, material, scientific approach and authentic assessment. Research instrument was form of questions that consist of : 11 competence questions, 11 material questions, 10 scientific approach questions, and 8 authentic assessment questions. Analysis result showed the persentage of competence suitability is 80,49% (good categories), for the persentage of material suitability is 81,06% (good categories), for the persentage of scientific approach suitability is 95,83% (very well categories), and the persentage of authentic assessment suitability is 88,80% (very well categories). Keywords: analysis, 2013 curriculum, student book.
PENERAPAN MODEL PEMBELAJARAN LEARNING CYCLE 5E DENGAN METODE PEMBERIAN TUGAS DAN RESITASI UNTUK MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR MATEMATIKA PADA POKOK BAHASAN ARITMETIKA SOSIAL SISWA KELAS VII A SEMESTER GENAP SMP NEGERI 10 JEMBER TAHUN AJARAN 2 Lestari, Eka Cahya; Hobri, H; Kristiana, Arika Indah
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.v6i2.1987

Abstract

Abstract.The purpose of this research is to increase student’s activities and learning achievement score. The research implemented Learning Cycle 5E model with giving assignment and recitation methods. This research type is a Classroom Actions Research (CAR) of two cycles, there are two classes in each cycle. The topic in the research is a social arithmetic. The research methods are observation, test, interview, and documentation. The data analysis in this research are student’s activities, student’s achievement score and teacher’s activities. The research show that the student activities for spiritual attitude attaine 65,28% and for social attitude attaine 68,55% in the first cycles and the student activities for spiritual attitude attaine 95,14% and for social attitude attaine 78,25% in the second cycles. The teacher’s activities attaine 85,19% in the first cycles and 96,30% in the second cycles, and the achievement score attaine 55,56% in the first cycles and 80,56% in the second cycles. It can be concluded that the implementation of Learning Cycle 5E model with giving assignment and recitation methods is able to improve student’s activities and learning outcome. Key Words : Learning Cycle 5E model with giving assignment and recitation methods, Social Arithmetic, student’s result study, student’s activities.

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