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All Journal Jurnal Infinity Indonesian Journal of Mathematics and Natural Sciences Jurnal Penelitian Pendidikan Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran JIPMat (Jurnal Ilmiah Pendidikan Matematika) Educational Management Math Didactic: Jurnal Pendidikan Matematika Jurnal Cendekia : Jurnal Pendidikan Matematika Unnes Journal of Mathematics Education Research Journal of Primary Education M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika Jurnal Wahana Pendidikan Journal of Research and Educational Research Evaluation Jurnal Inovasi Pembelajaran di Sekolah Unnes Journal of Mathematics Education Unnes Journal of Mathematics Unnes Journal of Mathematics Education
Dwijanto Dwijanto, Dwijanto
Mathematics Education Department, Semarang State University, Indonesia
Decision Sciences, Operations Research & Management Education Engineering Mathematics Other

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Effectiveness of Probing-prompting Learning Models with Scaffolding Strategy to Mathematic Creative Thinking Ability and Enthusiasm Alfian, Miftah Hafidz; Dwijanto, Dwijanto; Sunarmi, Sunarmi
Unnes Journal of Mathematics Education Vol 6 No 2 (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.v6i2.17172

Abstract

The purpose of this research was to know that the learning model ProbingPrompting with Scaffolding strategy effective on the mathematic creative thinking ability and enthusiasm. Based on the research results in students population in class VII SMP N 1 Adiwerna in the academic year 2016/2017, used techunique random sampling there are class VII A as experimental class and class VII B as control class. The research total show that in experimental class is reached out classical. The difference test of two average mathematic creative thinking abilities indicates that students' mathematic creative thinking ability in the experimental class is better than the control class. The difference test of two average of enthusiasm shows that enthusiasm students in the experimental class is better than the control class. The conclusion of this research is ProbingPrompting learning model with scaffolding strategy effective to the mathematic creative thinking ability and enthusiasm.
IMPLEMENTASI JARINGAN SYARAF TIRUAN BACKPROPAGATION SEBAGAI SISTEM DETEKSI PENYAKIT TUBERCULOSIS (TBC) Purnamasari, Ratnaningtyas Widyani; Dwijanto, Dwijanto; Sugiharti, Endang
Unnes Journal of Mathematics Vol 2 No 2 (2013)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v2i2.3247

Abstract

Aplikasi jaringan syaraf tiruan (JST) melalui pengenalan pola terjadinya sesuatu telah banyak dikaji dalam berbagai bidang ilmu pengetahuan. JST mampu memberikan hasil keputusan berdasarkan data yang dilatihkan. Penelitian ini membuat sebuah aplikasi JST untuk mendiagnosis penyakit Tuberculosis. Sistem deteksi ini dibuat dengan menggunakan perangkat lunak Matlab R2009a. Tujuan dari penelitian ini adalah untuk mengetahui arsitektur JST yang maksimal dan mengetahui besarnya kemampuan JST dalam mengklasifikasikan data. Gejala-gejala penyakit TBC yang digunakan sebagai input untuk mendiagnosis penyakit tersebut terdiri atas 6 variabel dengan kode target 1 untuk suspek TBC dan 0 untuk negatif TBC. Berdasarkan hasil penelitian menggunakan JST dengan metode backpropagation menunjukkan bahwa dengan adanya variasi jumlah neuron hidden layer dan learning rate dalam arsitektur JST akan diperoleh arsitektur jaringan yang optimal. Arsitektur jaringan menghasilkan tingkat akurasi 100% dengan parameter tingkat belajar 0,5, 1 lapisan tersembunyi dengan 100 buahnode, kesalahan target 0,001, dan jumlah epoh 1000.
Implementasi Algoritma Genetika untuk Menyelesaikan Travelling Salesman Problem Menggunakan Software MATLAB Sari, Firar Anitya; Dwijanto, Dwijanto; Sugiharti, Endang
Unnes Journal of Mathematics Vol 2 No 2 (2013)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v2i2.3251

Abstract

Travelling Salesman Problem (TSP) merupakan salah satu masalah optimalisasi. TSP adalah suatu permasalahan untuk menemukan siklus Hamilton yang memiliki total bobot sisi minimum. Oleh karena itu, penelitian ini membahas tentang pencarian rute terpendek pada PT. Jalur Nugraha Ekakurir (JNE) Semarang dengan syarat setiap alamat hanya dapat dikunjungi satu kali kecuali alamat asal. Penelitian ini memanfaatkan Algoritma Genetika yang biasa digunakan untuk memecahkan suatu pencarian nilai dalam sebuah masalah optimasi dan juga mengaplikasikannya dengan software MATLAB. Parameter yang digunakan antara lain ukuran populasi, maksimum generasi, probabilitas perkawinan silang, dan probabilitas mutasi. Hasil pengujian menunjukkan bahwa dari probabilitas perkawinan silang ( ) yang berbeda-beda antara 0,1 sampai 1,0, diperoleh jalur yang terbaik dan nilai fitness maksimum pada saat probabilitas perkawinan silang ( ) 1,0 pada generasi ke-95 dengan total jarak 18,8203 km.
APLIKASI JARINGAN SYARAF TIRUAN BACKPROPAGATION DALAM PERAMALAN BEBAN PUNCAK DISTRIBUSI LISTRIK DI WILAYAH PEMALANG Marsiana, Siwi; Dwijanto, Dwijanto; Alamsyah, Alamsyah
Unnes Journal of Mathematics Vol 3 No 1 (2014)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v3i1.3281

Abstract

Tujuan dari penelitian ini adalah mengetahui bagaimana rancangan arsitektur jaringan syaraf tiruan (JST) backpropagation untuk dapat meramalkan beban puncak distribusi listrik di Wilayah Pemalang. Metode penelitian yang digunakan adalah menemukan masalah, merumuskan masalah, metode pengumpulan data, analisis dan pemecahan masalah, dan penarikan simpulan. Pengumpulan data dilakukan dengan mengambil atau melihat langsung data dari arsip di PT PLN (Persero) APD Semarang. Dari hasil analisis diperoleh arsitektur jaringan syaraf tiruan yang optimum untuk peramalan puncak distribusi listrik di Wilayah Pemalang yaitu jaringan dengan struktur 7 unit input, 32 unit tersembunyi, dan 1 unit output untuk beban puncak siang, dan jaringan dengan 7 unit input, 42 unit tersembunyi, dan 1 unit output untuk beban puncak malam.
METODE PERTCPM UNTUK OPTIMALISASI PENJADWALAN PROYEK (STUDI KASUS PEMBANGUNAN RUSUNAWA KARANGROTO SEMARANG) Gumilang, Bram Iskumara; Dwijanto, Dwijanto; Mulyono, Mulyono
Unnes Journal of Mathematics Vol 3 No 2 (2014)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v3i2.4299

Abstract

Permasalahan dalam penelitian ini adalah menentukan waktu optimal untuk menyelesaikan proyek pembangunan rusunawa di Karangroto Semarang, dengan metode PERTCPM dan Microsoft Project 2010. Tujuan dalam penelitian ini adalah untuk mengetahui kegiatan-kegiatan kritis, yang menentukan waktu penyelesaian proyek. Sehingga dapat diketahui, pada kegiatan mana yang mendapat perhatian lebih supaya tidak terjadi perpanjangan waktu. Pengambilan data dalam skripsi ini dengan teknik dokumentsi, wawancara dan studi pustaka dengan PT. Paesa Pasindo Engineering sebagai kontraktor , dan PT. Ciria Expertindo Consultant selaku pengawas. Hasil analisis penjadwalan proyek yang dilakukan oleh PT. Paesa Pasindo Engineering dan PT. Ciria Expertindo Consultant bedasarkan data time schedule diperoleh keterangan bahwa proyek pembangunan rusunawa memerlukan waktu 216 hari. Sedangkan dengan metode PERTCPM dan program Microsoft Project 2010 diperlukan waktu 214 hari.Dengan hasil penelitian ini,disarankan PT. Paesa Pasindo Enginering dan PT. Ciria Expertindo Consultant mempertimbangkan menggunakan teknik PERTCPM dengan Microsoft Project dalam membuat penjadwalan proyek
The mathematical creative thinking ability viewed from learning interest in eleventh grade of vocational high school by using treffinger model assisted by problem card Dwijanto, Dwijanto; Tayani, Mevi; Veronica, Rahayu Budhiati
Unnes Journal of Mathematics Education Vol 8 No 1 (2019): 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.v8i1.29349

Abstract

This study aimed to find out (1) whether the students’ mathematical creative thinking ability with Treffinger learning model assisted by problem cards could achieve classical completeness or not, (2) whether the average of students’ mathematical creative thinking ability with Treffinger learning model assisted by problem card can reach the Minimum Mastery Learning Criteria or KKM, (3) whether students' mathematical creative thinking ability with Treffinger's learning model assisted by problem cards was better than students’ with PBL learning model, and (4) the analysis of students' mathematical creative thinking ability in terms of students' learning interests. This research was a mixed method research. The population of this research was XI grade students of State Vocational High School 2 Rembang. The subjects of this research were selected by using random sampling techniqu. Then, XI grade of shipping engineering class B as class experiment class XI A as PBL learning class. The data collection covered method tests, questionnaires, observa­tions, and interviews. Afterwards, the result showed that that: (1) the mathematical creative thinking ability of students in Treffinger learning assisted by problem cards achieved the classical completeness, (2) the students’ mathematical creative thinking ability in Treffinger learning assisted by problem card achieved the Minimum Mastery Learning Criteria, (3) the students’ creative thinking ability with Treffinger learning model assisted by problem card was better than students with PBL learning model, and (4) the students’ mathematical creative thinking with high interest in learning was better than students’ with the low learning interest.
OPTIMASI KEUNTUNGAN PAKAIAN DENGAN ALGORITMA TITIK INTERIOR (STUDI KASUS PADA PD. SIDO MUMBUL) SA'ADAH, ALFIATUS; Suyitno, Hardi; Dwijanto, Dwijanto
Unnes Journal of Mathematics Vol 6 No 1 (2017)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v6i1.11956

Abstract

Abstrak Penelitian ini bertujuan untuk mengetahui komposisi jumlah dari masing-masing produk pakaian yang harus diproduksi sehingga dapat memaksimumkan keuntungan PD. Sido Mumbul. Data yang diperoleh dalam penelitian ini berupa data primer dan data sekunder. Hasil perhitungan dengan Algoritma Titik Interior yang dibulatkan dengan Metode Branch and Bound menunjukkan keuntungan optimal sebesar Rp. 21,794,060.00 dengan memproduksi celana CA 018 sebanyak 3188 unit, celana CA 042 sebanyak 1800 unit, celana CA 052 sebanyak 3600 unit, dan popok PPK 02 sebanyak 7200 unit. Perhitungan keuntungan dengan Algoritma Titik Interior diperoleh keuntungan sebesar Rp. 21,794,060.00 dan perhitungan keuntungan yang dilakukan oleh PD. Sido Mumbul memperoleh keuntungan sebesar Rp. 20,606,400.00, selisih perhitungan keuntungan dengan Algoritma Titik Interior dan perhitungan yang dilakukan oleh PD. Sido Mumbul terpaut sebesar Rp. 1,187,660.00. Ini menunjukkan keuntungan yang diperoleh PD. Sido Mumbul belum optimal. Abstract This research was aimed to get the total composition of each clothes-product that must be produced, so that it can maximize the profit of PD. Sido Mumbul. The data that was gotten in this research were the primary and the secondary data. The result of calculation using Interior Point Algorithm with Branch and Bound method showed the optimal profit to the amount of 21,794,060.00 IDR by producing 3188 units of shorts CA 018, 1800 units of shorts CA 042, 3800 units of shorts CA 052, and 7200 units of PPK 02. The profit calculation using Interior Point Algorithm was 21,794,060.00 IDR and the calculation of PD. Sido Mumbul was 20,606,400.00 IDR, the ratio profit calculation using Interior Point Algorithm compared with the calculation by PD. Sido Mumbul was up 1,187,660.00 IDR. The showed the profit gotten by PD. Sido Mumbul had not been optimal.
Creative thinking mathematical ability of students in Treffinger learning based on cognitive style Nurzulifa, Siti; Dwijanto, Dwijanto
Unnes Journal of Mathematics Education Vol 10 No 1 (2021): 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.v10i1.32402

Abstract

This study aimed to test the thoroughness of learning Treffinger for mathematical creative thinking abilities of students, tes the mathematical creative thinking abilities of students in the learning Treffinger compared conventional, and analyze the mathematical creative thinking abilities of students in Treffinger based cognitive style. This study uses a mixed methods design sequential explanatory. The subjects of this study were six students of class VII J SMP Negeri 1 Godong in the even semester of the academic year 2018/2019. Data collection techniques used include: observation, documentation, test, and interviews. The result showed that (1) learning Treffinger due to the ability of creative thinking mathematically, (2) ability to think creatively mathematical students in learning Treffinger higher than the ability to think creatively mathematical students in learning conventional, (3) the ability to think creatively mathematically students on cognitive style is (a) field independent students less able to work on question smoothly and flexibly; can work on new problem correctly ; can write in detail and correctly what is known in the problem, can develop ideas that are owned by being able to draw geometric flat shapes well; (b) intermediet field students less able to work on question smoothly and flexibly; less able to work on new problem correctly; can develop ideas that are owned by being able draw geometry well; (c) field dependent student less able to work on question smoothly and flexibly; less able to work on new problems correctly; less able to develop ideas that have to work on a problem.
MODEL LINEAR GOAL PROGRAMMING PADA PENJADWALAN PERAWAT UGD RUMAH SAKIT UMUM DAERAH KOTA SEMARANG Ichsan, Nur; Dwijanto, Dwijanto; Arifudin, Riza
Unnes Journal of Mathematics Vol 5 No 1 (2016)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/ujm.v5i1.13114

Abstract

Scheduling of emergency room is quite a complicated issue for each hospital, including the RSUD Kota Semarang. Many methods can be used in the scheduling of nurses, including the Linear Goal Programming (LGP). The purpose of this study was to determine the form of the LGP model and comparison between manual scheduling and LGP model. The method used in this study is by changing the scheduling rules into a form of LGP models, then the model is solved with LINGO 14. In this model, the hospital rules should not be violated is called major constraints, while the rules may be violated at any time is called additional constraints. Additional constraints is a policy made by the head nurse to schedule in accordance with the conditions and needs of nurses. In this study there are 7 major constraints and 5 additional constraints. Based on calculations, obtained the nurse schedule for 31, 30, 29, and 28 days. From the analysis, LGP schedule for 31 days, 30 days, 29 days, and 28 days to meet all of the major constraints and additional constraints. While in manual schedule, the main constraints are met as much as 5 constraints. Then for the additional constraints are not met for all. From the analysis, LGP models can also be applied to the scheduling of nurses in the other room.
Mathematical creative thinking ability of 7th grade student observed from self-confidence in learning RTTW with open ended approach Prasetyowati, Nugraheni; Dwijanto, Dwijanto
Unnes Journal of Mathematics Education Vol 8 No 2 (2019): 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.v8i2.32628

Abstract

The purpose of this research is to test students' creative thinking abilities in RTTW learning with open ended approach to achieve individual and classical learning completeness, to test the mathematical creative thinking abilities of students taught in RTTW learning with open ended approach better than Discovery Learning, to describe thinking skills students' mathematical creativity observed from self-confidence in RTTW learning with open ended approach. The method used is mixed method. Quantitative methods are used to determine students' mathematical creative thinking abilities using tests, while the qualitative method used documentation and interviews. The study population was students of Junior High School Grade 7th, with class VII F as the experimental class and VII E as the control class. The research subjects were 6 subjects chosen based on the self-confidence category of class VII F. The results showed that (1) the results of RTTW learning with open ended approach to completing individual learning completeness, (2) the results of the RTTW learning had an open ended approach to achieving classical learning completeness, (3 ) the mathematical creative thinking abilities of students in RTTW learning with open ended approach better than Discovery Learning, (4) subjects of the upper self-confidence group are able to meet 4 indicators, the middle group is able to meet 2 indicators, the lower group is able to meet 1 indicator.
Co-Authors Adi Nur Cahyono Alamsyah - Alfian, Miftah Hafidz Alfiani, Intan Ambarwati, Ratna Amin Suyitno Amin Yusuf Arifah, Nazihatun Bambang Subali Buyung Buyung, Buyung Cahyo Yuwono Chotim, Moch Darmo, Darmo Dewi (Nino Adhi), N.R. Dewi Fitriana Dewi, Nuriana Rachmani Diani, Anisa Hayu Endang Sugiharti, Endang Farid Ahmadi Faroh, Arina Ulil Fattayati, Fattayati Gumilang, Bram Iskumara Hardi Suyitno Hardini Kurniani, Khoirida Hartono, Ahmad Farid Hendra Yulianto Ichsan, Nur Imam Kusmaryono Isti Hidayah Lestari, Pinta Dian Maftukhin, Mohammad Maghfiroh, Khikmatul Maretasani, Laurensia Dhika Marfuah, Ismi Marsiana, Siwi Mashuri Mashuri Masrukan Masrukan Mohammad Asikin Mohammad Taufiq Muhammad Rizqi Muhammad, Candra Hadi Mulyono Mulyono Munafiah, Siti Nugroho, Indra Adi Nurcholifah, Siti Nurkaromah Dwidayati, Nurkaromah Nursasongko, Aditya Nurzulifa, Siti Octaviani, Dessy Oktaviyani, Oktaviyani Pramudiyanti, Noviana Prasetiyo, Sofan Tri Prasetyowati, Nugraheni Purnamasari, Ratnaningtyas Widyani Putri, Elanda Laksinta Putriaji Hendikawati Riza Arifudin Rochmad - Rosadi, Aklis Ruswanto, Ruswanto SA'ADAH, ALFIATUS Safitri Safitri Salsabila, Fasqina Saputri, Mike Sari, Firar Anitya Sasongko, Andry Scolastika Mariani Setianingsih, Yane Irna Sholihah, Fitrotus St. Budi Waluya Sudianto, Sudianto Sugiman Sugiman sulistyawati, anita Sunarmi Sunarmi Supriyono Supriyono Tayani, Mevi Tri Suminar Utari, Sindyeva Widya Hari Veronica, Rahayu Budhiati Walid Walid, Walid Wardono Wardono Widiyaningsih, Endang Winardi Winardi Wulandari, Novi Citra Yoni Sunaryo Yundari, Yundari Zaenal Abidin Zaenuri Mastur