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Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika
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MODEL MATEMATIKA ALIRAN TAK TUNAK FLUIDA VISKOELASTIK MELEWATI SILINDER ELIPTIK DENGAN PENGARUH SUMBER PANAS (HEAT GENERATION)

Sulistyaningtyas, Annisa Dwi

Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 8 No 1: (2018)
Publisher : Universitas PGRI Adi Buana Surabaya

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Abstract

The mathematical model is the representation of problem to gain a quantitative and qualitative understanding formed within the mathematical framework. The purpose of this research is obtained a mathematical model on unsteady flow of viscoelastic fluid passing through an elliptical cylinder with the influence of heat generation. The governing equations are developed from continuity equation, momentum equation, and energy equation. Dimensional equations are transformed into non-dimensional form and then classified into the similarity equations using boundary layer theory. The result of this research is indicated the effect of heat generation from mathematical model on unsteady flow of viscoelastic fluid. Keywords: unsteady flow, viscoelastic fluid, elliptic cylinder, heat  generation

PENINGKATAN KEMAMPUAN REPRESENTASI MATEMATIS MELALUI PEMBELAJARAN KONTEKSTUAL SISWA KELAS VIII SMP

Rustam, Ahmad, Sardin, Sardin

Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 8 No 1: (2018)
Publisher : Universitas PGRI Adi Buana Surabaya

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Abstract

This research is an experimental research with the aim to know: (1) improvement of the average of mathematical representation skills of class VIII student of SMP Negeri 2 Uluiwoi before getting learning with contextual approach; (2) improvement of the average of mathematical representation skills of grade VIII student of SMP Negeri 2 Uluiwoi before getting learning with conventional approach; (3) an average increase in student representation skills taught by a contextual learning approach is better than an increase in the average of mathematical representation skills taught by conventional learning. The population in this study is all students of class VIII SMP Negeri 2 Uluiwoi academic year 2016/2017 spread in 2 parallel classes with the number of 46 people. The population consists of two classes, then the sample is chosen by specifying the first class as the experimental class and the second class as the control class, assuming that the two classes are statistically homogeneous. This data collection technique uses test and observation techniques. Data analysis techniques use descriptive statistics and inferential statistics. The results of empirical research indicate that; (1) Improvement of mathematical representation skills of class VIIIA students taught by using contextual learning model consisting of 24 students showed average value 46,25 and deviation standard 7,409 with mean increase or average N-Gain value 0, 42 is in the medium category. The improvement of the mathematical representation skills of VIIIB class students taught by using conventional learning model which consist of 22 students shows the average value 49,09 and deviation standard 15,402 with mean increase or average of N-Gain value equal to 0,25 is at low category. Inferential statistical analysis shows that (1) there is an increase in the average ability of students mathematical representation after having contextual learning, (2) There is an increase in the average ability of students mathematical representation after conventional learning, and (3) students mathematical representation with the application of contextual approach is higher than the conventional learning model in Grade VIII students of SMP Negeri 2 Uluiwoi.  Keywords: Improved, Contextual, Conventional, N-Gain, mathematical representation skills.

PENERAPAN METODE MIND MAPPING PADA PEMBELAJARAN MATEMATIKA SIWA SMPN 48 SURABAYA

Nurdamayanti, Aulia

Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 8 No 1: (2018)
Publisher : Universitas PGRI Adi Buana Surabaya

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Abstract

This research is based on the frequent learning of mathematics which is generally centered on the teacher, which is often considered able to make the students can understand the material given. While, students should participate actively in learning, to be able to build ideas through the ability and thought in accordance with their understanding. This research is quantitative descriptive. The techniques used in this study are observation, questionnaires, and tests. Learning model in this research is using mind mapping method, because mind mapping method can help students to not always record writing as a whole. Students can present words, ideas,  made on their own thoughts, understanding and creativity, and can understand the material for a longer period of time. Based on the background, the purpose of this research is to describe the student activity during the application of mind mapping method, to describe the students response and the learning result after applying the mind mapping method on persamaan garis lurus. The conclusion that can be drawn from the application of mind mapping method on the equation of persamaan garis lurus of students of class VIII SMP Negeri 48 Surabaya is that with mind mapping method can make the students more active role in the class. And for learning outcomes also experience mastery at equation of equation.. Keywords: mind mapping, activity, response, learning outcomes

AKTIVITAS DAN RESPON SISWA MELALUI MODEL PEMBELAJARAN WITHIN-SOLUTION POSING

Susiaty, Utin Desy

Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 8 No 1: (2018)
Publisher : Universitas PGRI Adi Buana Surabaya

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Abstract

The purpose of this study was to describe the activities and responses of students through the in-solution posing learning model. This research uses quantitative approach with descriptive method. The population in this study is the students of class VII MTs Negeri 2 Pontianak academic year 2007/2008 who studied the material of comparative value and turned the value. The result of the research shows that students of Grade VII MTs Negeri 2 Pontianak are active in learning with within-solution posing and VII students of MTs Negeri 2 Pontianak give positive response to learning with within-solution posing.   Keywords: activities, response, within -solution posing  

ANALISIS PELAKSANAAN PRAKTIKUM MATA KULIAH BIOLOGI UMUM PROGRAM STUDI PENDIDIKAN MATEMATIKA IKIP PGRI PONTIANAK

Dafrita, Ivan Eldes, Oktaviana, Dwi

Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 8 No 1: (2018)
Publisher : Universitas PGRI Adi Buana Surabaya

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Abstract

The purpose of this study is to analyze whether there is a significant correlation between the practicum to final grade of the General Biology subject of Mathematics Education student IKIP PGRI Pontianak. Research subjects are all students of Mathematics Education which follow the subjects and practicum of General Biology starting from academic year 2014/2015 until 2016/2017. Instrument in this research is documentation of data result of practicum and final score of General Biology of academic year 2014/2015 until 2016/2017. Based on the result of research and discussion, it can be concluded that there is a significant correlation between the practicum to final score of the General Biology subject of Mathematics Education Student IKIP PGRI Pontianak for the academic year 2014/2015, 2015/2016, and 2016/2017 with the result of p value (Asymp Sig 2 tailed) of 0.000 is smaller than 0.05   Keywords: correlation, practicum, final score.

KLASIFIKASI KENDARAAN BERMOTOR DENGAN MULTI KERNEL SUPPORT VECTOR MACHINE

Athoillah, Muhammad

Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 8 No 1: (2018)
Publisher : Universitas PGRI Adi Buana Surabaya

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Abstract

Since October 2017, Electronic automatic payments have been applied in all Indonesian toll roads. This payment system needes an extra system which is able to distinguish the types of motor vehicles that will enter the toll road due to the regulation itself which allow four-wheel or more vehicle to pass the toll road. This automatic system can be built by a classification algorithm, and one of the best is Support Vector Machine (SVM), in order to be able to classify non-linear separable data, SVM must be modified by giving kernel function on it. Furthermore, determining the approriate kernel for every classification problem is a fundamental step, and that’s obviously not easy, to solve that problem the researchers found a method that can make this kernel function more flexible, this method called Multi Kernel Learning (MKL). Main idea of this method is formulating some kernel function to be one kernel function. This framework is built an automatic system to classify the types of motor vehicles using Support Vector Machine modified using Multi Kernel Learning method. The experimental result shows that the system has a good average value of accuracy that is 84.60%, the average value of precision is 84.95% and also average value of recall is 84.60%. Keyword: Kendaraan Bermotor, Klasifikasi, Multi Kernel, Support Vector Machine

PENGEMBANGAN BUKU INTISARI MATEMATIKA JENJANG SEKOLAH DASAR DITINJAU DARI ASPEK KELAYAKAN ISI, PENYAJIAN, BAHASA, DAN KEGRAFIKAN

Rahayu, Sri, Fathonah, Nur, Ladyawati, Erlin

Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 7 No 2: (2017)
Publisher : Universitas PGRI Adi Buana Surabaya

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Abstract

Pada sebagian besar siswa, matematika merupakan pelajaran yang meninggalkan pengalaman yang kurang menyenangkan dalam belajar. Hal ini disebabkan oleh banyak faktor antara lain faktor siswa, guru, materi pelajaran, kurikulum dan lingkungan. Dari permasalahan yang diungkapkan di atas, hal yang perlu dilakukan untuk memecahkan masalah tersebut adalah mengembangkan buku intisari yang sesuai sehingga dapat meningkatkan komponen penting dalam mengembangkan kemampuan analitis dan kemampuan kritis peserta didik. Tujuan penelitian ini adalah mengembangkan buku intisari matematika ditinjau dari aspek kelayakan isi, penyajian, bahasa, dan kegrafikan. Penelitian ini merupakan penelitian pengembangan. Buku intisari Matematika jenjang sekolah dasar dikembangkan dengan model ADDIE (Analysis, Design, Development, Implementation, Evaluation). Adapun tahap-tahap pada model pengembangan model ADDIE antara lain tahap analysis meliputi: a. analisis kurikulum, b. analisis materi, dan c. analisis karakter siswa; tahap design meliputi: a. perancangan garis besar isi buku, b. menyusun peta kebutuhan buku, c. Menyusun instrumen penelitian; tahap development meliputi: a. penulisan buku, b. validasi buku, c. uji coba terbatas, d. revisi buku; tahap implementation dan tahap evalution. Dua tahap terakhir belum dilakukan mengingat keterbatasan waktu penelitian. Buku ini mendapatkan validasi kelayakan isi, penyajian, bahasa, dan kegrafikan dengan kriteria sangat baik, dan dapat digunakan dengan revisi. Dengan beberapa revisi, maka buku ini sudah dapat digunakan dalam implementasi di sekolah. Setelah diimplementasikan di sekolah buku Intisari Matematika jenjang Sekolah, diperoleh nilai ketuntasan siswa yaitu secara klasikal kelas dikatakan tuntas dengan pembelajaran menggunakan buku Intisari Matematika. Kata Kunci: buku intisari matematika, kelayakan isi, kelayakan penyajian, kelayakan bahasa,  kelayakan kegrafikan

DIMENSI METRIK PADA HASIL OPERASI KORONA DUA BUAH GRAF

P., Silviana Maya, Kapita, Syarifuddin N.

Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 7 No 2: (2017)
Publisher : Universitas PGRI Adi Buana Surabaya

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Abstract

Misalkan  didefinisikan sebagai graf terhubung dengan  himpunan titik pada graf  dan  himpunan titik pada graf G yang anggotanya telah ditentukan. Representasi titik , untuk setiap  terhadap W dinotasikan dengan  di  merupakan jarak titik  pada tiap anggota di  atau dapat dituliskan sebagai . Himpunan W disebut himpunan pemisah pada G jika dan hanya jika untuk setiap u,v pada G dan  mengakibatkan . Dimensi metrik pada  dinotasikan dengan  merupakan kardinalitas minimum dari semua himpunan pemisah pada . Operasi korona pada dua buah graf G dan H dinotasikan dengan . Kata Kunci: Dimensi Metrik, Himpunan Pemisah, Representasi Metrik, Operasi Korona.

PERAMALAN JUMLAH PENUMPANG KERETA API DI INDONESIA MENGGUNAKAN METODE EKSPONENTIAL SMOOTING

Oktaviarina, Affiati

Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 7 No 2: (2017)
Publisher : Universitas PGRI Adi Buana Surabaya

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Abstract

Kereta api merupakan salah satu jenis transportasi umum yang banyak diminati karena mempunyai banyak kelebihan antara lain harga tiket yang bervariasi dan relatif terjangkau oleh seluruh lapisan masyarakat banyak pilihan stasiun tujuan, jadwal keberangkatan dan jenis kelas gerbong yang tersedia. Pertumbuhan jumlah penumpang kereta api di Indonesia tahun 2006 sampai dengan 2017 merupakan  data time series yang menunjukkan tren naik dari tahun ke tahun. Double Eksponential Smoothing merupakan metode Eksponensial Smoothing terbaik untuk meramalkan data jumlah penumpang kereta api karena memliliki nilai SSE, MSE dan MAPE terkecil yaitu 71.686.012, 3.258.455,1 dan  0,05. Model Double Eksponensisal yang dihasilkan adalah  dan   dan . Hasil peramalan jumlah penumpang kereta api bulan Januari sampai dengan Desember 2018 menunjukkan adanya pertumbuhan dari bulan ke bulan sepanjang tahun. Kata Kunci: eksponensial smoothing, double eksponential smoothing, MSE, SSE,  MAPE

ANALISIS KEMAMPUAN KOMUNIKASI MATEMATIS MAHASISWA PADA MATERI GEOMETRI SUDUT

Wantika, Restu Ria

Buana Matematika : Jurnal Ilmiah Matematika dan Pendidikan Matematika Vol 7 No 2: (2017)
Publisher : Universitas PGRI Adi Buana Surabaya

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Abstract

Purpose done research to know how mathematical communication ability of student either in writing or orally.The type of this research is descriptive research with qualitative approach. The subjects of the research are S-1 students of Mathematics Education Department of UNIPA Surabaya who are taking angle geometry courses that have good mathematical communication ability, good enough and less good that has been predicted by mathematics teacher in that class. Methods of data collection used were observations during learning, tests and in-depth interviews. Research instruments are diagnostic tests and interview guidelines. Data analysis in this research is descriptive qualitative analysis. The data analyzed are observational data during the learning, test results and in-depth interviews that are used to describe students mathematical communication abilities in writing and orally. The results obtained from this study among others. The result of the analysis of students who have the ability of mathematical communication as a whole found that 28.65% are at level 4, where students are able to use math language (term, symbol, sign, and or representation) which is very effective, accurate and comprehensive. Furthermore, 21.87% of students are at level 3, where students are able to use math language (terms, symbols, signs, and or representations) that are less effective but accurate. So also students who have the ability of mathematical communication at level 2 is 19.78%. Where at level 2 students are able to use math language (terms, symbols, signs, and or representations) that are less effective. Furthermore 25% of students are at level 1, where students in using mathematics language (term, symbol, sign, and or representation) are inaccurate and ineffective. At level 0 where the student does not give answer as much as 4.67%. Keywords: analysis of mathematical communication skills, angular geometry