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Nanang Supriadi

Universitas Islam Negeri Raden Intan Lampung

Author-ID : 1996431

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Optimalisasi Produksi Kopi Bubuk Asli Lampung Dengan Metode Simpleks Ruchimat Haslan; Nanang Supriadi; Sri Purwanti Nasution
Matematika Vol 17, No 2 (2018): Jurnal Matematika
Publisher : Universitas Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/jmtm.v17i2.3852

The Optimization of Lampung Original Powder Coffee Production With The Simplex MethodAbstrak. Tujuan penelitian ini adalah untuk mengoptimalkan produksi kopi bubuk dengan metode simpleks dan berbantu software Lindo dalam produksi kopi bubuk di Industri Rumahan Kopi Bubuk Asli Lampung. Metode simpleks adalah suatu metode yang digunakan untuk memecahkan masalah linear programming yang meliputi banyak pertidaksamaan dan banyak variabel dengan perhitungan berulang-ulang (iterasi) sampai mencapai solusi optimal. Penelitian ini adalah studi pustaka yang merupakan telaah dari literatur dengan mengkaji buku-buku, literatur-literatur, catatan-catatan, dan laporan-laporan yang berhubungan dengan masalah yang dipecahkan. Hasil dari penelitian ini menunjukkan bahwa setelah dilakukan perhitungan dengan metode simpleks dan berbantu software Lindo, jumlah produksi optimal yaitu 46 kemasan 1 dan 163 kemasan 2, sehingga diperoleh keuntungan produksi optimal sebesar Rp. 2.541.500 dengan ketersediaan bahan baku yang ada.Kata Kunci: Linear Programming, Metode Simpleks, Optimalisasi, Lindo 6.1Abstract. The purpose of this research is to optimize the production of coffee powder with simplex method and Lindo software assisted in the production of coffee powder in Lampung Pure Coffee Industry Original Lampung. The simplex method is a method used to solve linear programming problems that include many inequalities and many variables with repeated calculations (iterations) until it reaches the optimal solution. This study is a literature study which is a study of the literature by reviewing books, literature, records, and reports relating to the problem solved. The result of this research shows that after calculation with simplex method and assisted software Lindo, optimum production amount that is 46 pack 1 and 163 pack 2, so that obtained optimal production profit equal to IDR 2.541.500 with the availability of existing raw materials.Keywords: Linear Programming, Simplex Method, Optimization, Lindo 6.1

Metode Seasonal ARIMA untuk Meramalkan Produksi Kopi Dengan Indikator Curah Hujan Menggunakan Aplikasi R di Kabupaten Lampung Barat Hani Nastiti Tantika; Nanang Supriadi; Dian Anggraini
Matematika Vol 17, No 2 (2018): Jurnal Matematika
Publisher : Universitas Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29313/jmtm.v17i2.3831

Abstrak. Penelitian ini bertujuan untuk mendapatkan model terbaik dan meramalkan jumlah produksi kopi berdasarkan model terbaik yang telah diperoleh menggunakan metode Seasonal ARIMA yaitu dengan cara memodelkan data. Setelah diperoleh beberapa model pada masing-masing data, kemudian model terbaik dipilih berdasarkan pada kriteria nilai AIC dan SBC dengan nilai paling minimum. Hasil penelitian diperoleh untuk nilai AIC dan SBC yang paling minimum untuk data produksi kopi adalah model ARIMA (1,2,0)(1,2,1)12 dan untuk data curah hujan adalah model ARIMA (0,1,1)(1,1,0)12. Model tersebut adalah model yang akan digunakan untuk memprediksi jumlah kopi pada beberapa tahun mendatang di Kabupaten Lampung Barat.Kata Kunci: seasonal ARIMA, peramalan, aplikasi R, kopi, lampungAbstract. This research is used to get the best model and predict the amount of coffee production based on the best model that have been obtained by using seasonal ARIMA method. There are several steps of ARIMA seasonal method, the first is modeling data After obtaining several models on each data then the best model is chosen based on AIC and SBC value criteria with minimum value, minimum AIC and SBC value for coffee production data is ARIMA model (1,2,0)(1,2,1)12 and for rainfall data is ARIMA model (0,1,1)(1,1,0)12. The model is a model that will be used to predict the number of copies in the next few years in West Lampung District.Keywords: seasonal ARIMA, forecasting, R application, coffee, lampung

EFEKTIVITAS MODEL PEMBELAJARAN VISUALIZATION AUDITORY KINESTHETIC (VAK) TERHADAP PEMAHAMAN KONSEP MATEMATIS BERDASARKAN KLASIFIKASI SELF-EFFICACY SEDANG DAN RENDAH Muthiah Miftahul Jannah; Nanang Supriadi; Fraulein Intan Suri
AKSIOMA: Jurnal Program Studi Pendidikan Matematika Vol 8, No 1 (2019)
Publisher : UNIVERSITAS MUHAMMADIYAH METRO

Understanding mathematical concepts is one of the mathematical skills that must be mastered in learning mathematics. Self-efficacy is a feeling of confidence to solving a problem. This type of research is Quasi Experimental Design. The purpose of this study are to find out the Visualization Auditory Kinesthetic (VAK) learning model is more effective than conventional learning models, to find out the differences between students who have self-efficacy moderate and low on understanding mathematical concepts, and to know the interaction learning models and self-efficacy to wards understanding mathematical concepts. The population in this study were VII grade students of MTsN 2 Bandar Lampung, with research samples namely VII A as the experimental class and VII I as the control class. Data analysis techniques used normality test with Liliefors test and homogeneity test with Bartlett test. The hypothesis test used is a two-way unequal cell ANAVA test and a further test using a double comparative test using the Scheffe method. Based on the analysis and discussion of the calculation of research data, it was concluded that: First, mathematics learning using learning models was visualization auditory kinesthetic more effective than conventional learning models for understanding mathematical concepts. Second, understanding mathematical concepts of students who have self-efficacy moderate is better than low. Third, the results of the analysis show that there is no interaction between the learning model and the classification of self-efficacy to wards understanding mathematical concepts.

Meningkatkan Kemampuan Penalaran Matematis dengan Penerapan Pendekatan Bridging Analogy Ditinjau dari Self-Efficacy Nia Agustiana; Nanang Supriadi; Komarudin Komarudin
Inovasi Pembangunan : Jurnal Kelitbangan Vol 7 No 1 (2019): April 2019
Publisher : Balitbangda Provinsi Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (881.36 KB)

The purpose of this study was to find out the teaching and learning activities using the bridging analogy method and see the improvement of students 'mathematical reasoning abilities through the treatment of bridging analogy approach and see the differences in the increase in mathematical reasoning abilities in terms of students' self-efficacy. The research method used is the experimental method. The method of data collection in this study is questionnaires and tests. The sample used was class VIII students of SMP 19 Pesawaran. Based on the results of the study there is an increase in students' mathematical reasoning abilities using a bridging analogy approach. The marginal average in the analogy bridging approach is 0,73, which means it has a high N-Gain interpretation. The results also obtained a difference in the increase in students' mathematical reasoning abilities in terms of self-efficacy. Increased mathematical reasoning ability of high self-efficacy students is better than moderate and low self-efficacy but moderate and low self-efficacy does not have a significant difference.

Etnomatematika pada Buku Saku Digital Berbasis Android Materi Segitiga dan Segiempat MTs Muhammad Sholeh; Nanang Supriadi; Suherman Suherman
JKPM (Jurnal Kajian Pendidikan Matematika) Vol 6, No 2 (2021): JKPM (Jurnal Kajian Pendidikan Matematika)
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/jkpm.v6i2.9184

Penelitian ini bertujuan untuk menghasilkan buku saku digital yang valid, layak, menarik dan efektif sebagai media pembelajaran matematika. Penelitian ini merupakan penelitian pengembangan atau Research and Development (R&D) dengan model pengembngan 4D dari Thiagajaran yang terdiri atas 4 langkah yaitu: define (pendefinisian), design (perancangan), develop (pengembangan), dan disseminate (penyebaran). Subjek dari penelitian ini adalah peserta didik kelas VII MTs di Kabupaten Lampung Barat. Instrumen penelitian yang digunakan yaitu wawancara, angket validator ahli materi dan media, angket respon kemenarikan peserta didik, dan tes. Hasil validasi ahli materi dan ahli media memperoleh skor 3,69 dan 3,75 dengan kriteria “layak”, hasil uji coba kelompok kecil dan kelompok besar memperoleh skor 3,7 dan 3,79 dengan kriteria “sangat menarik”, sementara hasil uji efektifitas memperoleh skor N-gain sebsar 0,72 dengan ketegori “tinggi”. Simpulannya adalah buku saku digital berbasis android bercirikan etnomatematika dinyatakan valid, layak, menarik, dan efektif sebagai media pembelajaran matematika.

The Utilization of Project Based Learning and Guided Discovery Learning: Effective Methods to Improve Studentsâ€™ Mathematics Ability Nanang Supriadi; Muhamad Syazali; Bella Dwi Lestari; Eva Sima Dewi; Lintang Fitra Utami; Lingga Afriansyah Mardani; Fredi Ganda Putra
AT-TA'LIM Vol 25, No 3 (2018)
Publisher : Institut Agama Islam Negeri Imam Bonjol Padang

The purpose of this study was to determine whether there is any difference between studentsâ€™ mathematical representation ability who were taught by using the learning model of Project Based Learning with students who were taught by Guided Discovery Learning; there is any difference in the students' mathematical representation ability based on high, medium, or low learning motivation categories, and there is an interaction between the learning model and the learning motivation toward mathematical representation ability. A quasi experiment was used with 2x3 factorial designs. Instrument used to collect data was mathematics test and learning motivation questionnaire. The hypothesis testing used two way analysis of variance with unequal cell. Based on the results of hypothesis testing, it can be concluded that there is a difference in the students' mathematics ability that was taught by using Project Based Learning model with students who were taught by sing Guided Discovery Learning model; there is a difference in the studentsâ€™mathematical representation ability based on high, medium, or low learning motivation; and there is an interaction between the learning model and the learning motivation on the mathematics ability.

Model Pembelajaran CUPs Berbantuan Media Handout: Dampak terhadap Kemampuan Pemahaman Konsep Matematis ditinjau dari Gaya Kognitif Filian Yunita Sari; Nanang Supriadi; Rizki Wahyu Yunian Putra
Mosharafa: Jurnal Pendidikan Matematika Vol 11, No 1 (2022)
Publisher : Institut Pendidikan Indonesia

AbstrakGaya kognitif perlu diketahui untuk membantu pemilihan metode pengajaran yang sesuai kebutuhan siswa dalam belajar. Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Conceptual Understanding Procedures (CUPs) berbantuan media handout terhadap kemampuan pemahaman konsep matematis ditinjau dari gaya kognitif. Penelitian eksperimen semu ini menggunakan posttest-only control design. Populasi pada penelitian ini mencakup seluruh siswa kelas VIII SMP di kota Metro. Penentuan sampel menggunakan teknik cluster random sampling. Sampel penelitian adalah 41 siswa (22 di kelas eksperimen dan 19 di kelas kontrol). Pengujian hipotesis menggunakan uji anava dua jalan. Berdasarkan hasil penelitian didapatkan kesimpulan bahwa model pembelajaran CUPs berbantuan media handout mempunyai pengaruh terhadap kemampuan pemahaman konsep matematis siswa, gaya kognitif field independent dan field dependent mempunyai pengaruh terhadap kemampuan pemahaman konsep matematis siswa dan tidak ada interaksi antara model pembelajaran dan tipe gaya kognitif terhadap kemampuan pemahaman matematis siswa. CUPs Learning Model Assisted by Media Handout: Impact on Ability to Understand Mathematical Concepts in Terms of Cognitive StyleAbstractCognitive styles need to be known to help select teaching methods that are suitable for students' needs in learning. This study aims to determine the effect of the Conceptual Understanding Procedures (CUPs) learning model assisted by handout media on the ability to understand mathematical concepts in terms of cognitive style. This quasi-experimental research used a posttest-only control design. The population in this study includes all students of class VIII SMP in the city of Metro. Determination of the sample using cluster random sampling technique. The research sample was 41 students (22 in the experimental class and 19 in the control class). Hypothesis testing using two-way ANOVA test. Based on the results of the study, it was concluded that the CUPs learning model assisted by handout media had an influence on students' mathematical concept understanding abilities, field-independent and field-dependent cognitive styles had an influence on students' mathematical concept understanding abilities and there was no interaction between learning models and types of cognitive styles on understanding abilities. students' mathematical concepts.

Model Flipped Classroom dan Discovery Learning terhadap Kemampuan Pemahaman Konsep dan Pemecahan Masalah Matematis Lutfiatul Khofifah; Nanang Supriadi; Muhammad Syazali
PRISMA Vol 10, No 1 (2021): PRISMA Volume 10, No 1 Tahun 2021
Publisher : Universitas Suryakancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35194/jp.v10i1.1098

Tujuan penelitian ini untuk mengetahui pengaruh model pembelajaran (flipped classroom dan discovery learning) terhadap kemampuan pemahaman konsep, pengaruh model pembelajaran (flipped classroom dan discovery learning) terhadap kemampuan pemecahan masalah matematis, dan pengaruh model pembelajaran (flipped classroom dan discovery learning) terhadap kemampuan pemahaman konsep dan pemecahan masalah matematis. Penelitian ini dilakukan di SMA Negeri 1 Sumber Jaya. Jenis eksperimen yang digunakan adalah Quasy Experimental Design, dengan desain Posttest Only Control Group Design. Populasinya adalah peserta didik kelas XI dan sampel penelitian adalah XI IPA 1 berjumlah 31 peserta didik sebagai kelas eksperimen 1 dengan penerapan model flipped classroom, XI IPA 2 berjumlah 31 peserta didik sebagai kelas eksperimen 2 dengan penerapan model discovery learning, dan XI IPA 3 berjumlah 31 peserta didik sebagai kelas kontrol dengan penerapan model direct instruction. Teknik pengumpulan data menggunakan observasi dan tes. Analisis data menggunakan uji Manova dan dilakukan uji lanjutan menggunakan uji Tukey. Penelitian ini menghasilkan adanya pengaruh model pembelajaran (flipped classroom dan discovery learning) terhadap kemampuan pemahaman konsep, adanya pengaruh model pembelajaran (flipped classroom dan discovery learning) terhadap kemampuan pemecahan masalah dan adanya pengaruh model pembelajaran (flipped classroom dan discovery learning) terhadap kemampuan pemahaman konsep dan pemecahan masalah matematis.

Bahan Ajar Berbasis Alquran Teaching Model: Pemahaman Konsep Bangun Datar Siswa SMP Astriana Putri; Nanang Supriadi; Rizki Wahyu Yunian Putra
ANARGYA: Jurnal Ilmiah Pendidikan Matematika Vol 4, No 1 (2021)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/anargya.v4i1.6028

This research aims to produce mathematics teaching materials based on the ALQURUN Teaching Model (ATM). This research is a research and development (R and D) with the ADDIE development model. There are 5 stages in the ADDIE development model, namely: (1) Analysis; (2) Design; (3) Development; (4) Implementation; (5) Evaluation. The data collection instruments used were: interviews, material expert validator questionnaire, media expert validator questionnaire, student response questionnaire, and concept understanding ability tests. The results of the analysis of the material expert validation and media products of teaching materials based on ALQURUN Teaching Model fall into the feasible category of use with an average of 3.58 and 3.62 of the maximum score 4. The results of the analysis of student responses in small-scale trials (10 students) Large scale (20 students) for the developed teaching materials obtained very attractive criteria with an average score of 3.48 and 3.65 from a maximum score of 4. While the results of the effectiveness test of teaching material products developed towards improving students' understanding of mathematical concepts obtained the moderate category. with an effect size of 0.50 for SMPN in Lampung Utara. From these results,it shows that the produce mathematics teaching materials based on the ALQURUN Teaching Model (ATM) is very feasible to be used in supporting learning activities in the classroom.

Kemampuan Pemahaman Konsep dan Komunikasi Matematis: Pengaruh Model Pembelajaran Children Learning in Science (CLIS) Berbantuan Alat Peraga Edukatif Taat Herliana; Nanang Supriadi; Rany Widyastuti
Jurnal Cendekia : Jurnal Pendidikan Matematika Vol 5 No 3 (2021): Volume 5 Nomor 3 Tahun 2021
Publisher : Mathematics Education Study Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cendekia.v5i3.950

Penelitian ini bertujuan untuk mengetahui kemampuan pemahaman konsep dan kemampuan komunikasi matematis peserta didik SMA di Pesawaran setelah diberi perlakuan pembelajaran Children Learning in Science (CLIS) berbantuan alat peraga edukatif. Metode penelitian ini menggunakan metode quasy experimental design. Subjek penelitian terdiri dari 152 peserta didik kelas XI SMAN 1 Negerikaton dengan 60 peserta didik sebagai sampel penelitian. Teknik analisis data menggunakan uji normalitas, uji homogenitas dengan uji hipotesis statistik yaitu menggunakan uji One-Way Multivariate Analysis of Variance (MANOVA). Dari data yang diperoleh nilai sig 0,00 ˂ 0,05 maka menunjukan nilai rata-rata bahwa terdapat pengaruh model pembelajaran CLIS berbantuan alat peraga edukatif terhadap kemampuan pemahaman konsep dan kemampuan komunikasi matematis dibandingkan model pembelajaran konvensional yang diterapkan oleh pendidik disekolah. Kesimpulannya adalah terdapat hasil yang positif terhadap model pembelajaran tersebut.

Co-Authors A.A. Ketut Agung Cahyawan W Achi Rinaldi Adib, Muhammad Agus Pahrudin Akbar Handoko Amanda Diah Pangestika Amiruddin Amiruddin Ana Risqa JL Andini, Dita Anindhita, Wike Anna Fajriyah Annida Luthfia Putri Aprilia, Eka Arini Alhaq Astriana Putri Bambang Budiwiranto Bambang Sri Anggoro Bella Dwi Lestari Christina Khaidir Christina Khaidir Delviana, Desti Desi Vitona Dewi, Eva Sima Dewi, Wiwik Sulistiana Dewi, Wiwik Sulistiana Dian Anggraini Djaffar Lessy Dona Dinda Pratiwi Een Yayah Haenilah Eka Aprilia Elny Yulinda Sarai Ependi, Asip Eti Hadiati Eva Sima Dewi Faisyal, Intan Dyra Shari Fani Sisco Predi Farida Farida Farida, Farida Fitriani Fitriani Fitriani Fitriani Fraulein Intan Suri Fredi Ganda Putra Gumanti, Agung Akbar Maden Gunawan, Syahrul Hani Nastiti Tantika Hanifah Hanifah Hariri, Hasan Harum Yeni Rachmah, Harum Yeni Iip Sugiharta Imam Syafe’I Indah Resti Ayuni Suri Indrawan Al Ikhsan Indri Yulianti Iwan Kuswidi Jamaluddin, Wan Kartika Ramadona KOMARUDIN Laila Puspita Laila Puspita, Laila Laswadi Laswadi Lekok Melya Lestari, Bella Dwi Lesyani, Rizsa Lingga Afriansyah Mardani Lintang Fitra Utami Lutfiatul Khofifah M. Sayid Wijaya Maharani, Maghfira Maharani, Maghfira Mardani, Lingga Afriansyah Melya, Lekok Melya, Lekok Muhamad Syazali Muhammad Sholeh Muhammad Syazali Mujib Mujib, Mujib Murtadho , Ali Muthiah Miftahul Jannah Nadya Amalia Juana Nia Agustiana Ningrum, Septia Nirva Diana Novian Riskiana Dewi Noviana, Dewi Nur Fitri Lestari Nurhanurawati Nurhanurawati Nurlaila Sehuwaky Oktaria, Risa Pangestika, Amanda Diah Pangestika, Amanda Diah Pramodana, Dimas Raba PRIMAYEKTI, RIZKY Putri Oktaviana Rahmah, Fadila Ramadona, Kartika Rani Damayanti Rani Damayanti, Rani Rany Widyastuti Rany Widyastuti RIADDIN, DINAR Rifa Fahrullisa Risa Oktaria Riyama Ambarwati Rizki Wahyu Yunian Putra Ruchimat Haslan Santi Widyawati Sapta Desty Sugiharti Sari, Anggun Lupita Sari, Filian Yunita Septia Ningrum Septuri Silvi Anisa Siska Andriani Siti Hasanah Sri Purwanti Nasution, Sri Purwanti Suci Wulan Pawhestri Sugeng Sutiarso Suherman Suherman Suherman Suherman Suherman Suherman, Suherman Sunarto Sunarto Sunyono - - Syarif Maulidin Taat Herliana Tina Fitriani Wahyana, Rosi Wan Jalamuddin Z Wan Jamaluddin Z Wawan Gunawan Widiyastuti, Rany Widiyastuti, Rany Yuliana, Irma Yuliani, Endah Yuniar, Devvi Mila Yustika Fatimatuz Zahra Zahra, Yustika Fatimatuz

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