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Peramalan produksi padi di Kabupaten Sleman menggunakan model arima Sherlyna Maryanto Putri; Elly Arliani
Jurnal Kajian dan Terapan Matematika Vol 8, No 3 (2022): Jurnal Kajian dan Terapan Matematika
Publisher : Jurnal Kajian dan Terapan Matematika

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Abstract

Kabupaten Sleman merupakan kabupaten dengan jumlah penduduk tertinggi di Provinsi DIY dengan jumlah penduduk mencapai 1,2 juta jiwa pada tahun 2020. Pertumbuhan penduduk di Kabupaten Sleman juga meningkat setiap tahunnya. Populasi penduduk yang banyak tentu menjadi tantangan tersendiri untuk menyediakan kebutuhan pangan untuk masa yang akan datang sehingga perlu dilakukan peramalan untuk memperkirakan hasil produksi padi pada masa mendatang. Penelitian ini bertujuan untuk mendeskripsikan model yang tepat untuk peramalan produksi padi di Kabupaten Sleman dengan menggunakan metode ARIMA dan untuk mendeskripsikan hasil peramalan produksi padi di Kabupaten Sleman pada tahun 2021 hingga 2023. Penelitian ini menggunakan data tahunan produksi padi di Kabupaten Sleman dari tahun 1998 hingga 2020. Hasil penelitian menunjukkan bahwa model ARIMA(0,2,1) merupakan model terbaik untuk melakukan peramalan produksi padi di Kabupaten Sleman. Berdasarkan model ARIMA(0,2,1), diperoleh peramalan produksi padi di Kabupaten Sleman pada tahun 2021 hingga 2023 berturut-turut adalah 242.988 ton, 238.904 ton, dan 234.610 ton.
THE EFFECT OF LEARNING MODELS MISSOURI MATHEMATICS PROJECT WITH TWO STAY TWO STRAY METHODS FOR MATHEMATICAL PROBLEM SOLVING ABILITY OF STUDENT IN 7 th GRADE SMP N 1 TAWANGMANGU Rachma Hanan Tiasto; Elly Arliani
Jurnal Pedagogi Matematika Vol 5, No 4 (2016): Jurnal Pendidikan Matematika
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpm.v5i4.2674

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AbstractThis study aims to determine the effect of learning models of Missouri Mathematics  Project with Two Stay Two Stray methods for mathematical problem solving ability of grade VII students of SMP N 1 Tawangmangu. The method in this study is a quasi experimental research design with pre-test post-test design group. The population in this study were all students  of  grade  VII  of  State  Junior  high  School  1  Tawangmangu.  The  sample  in  this  research  is  grade  VII  F  had treatment with Missouri Mathematics Project learning models of Two Stay Two Stray method as the experimental class and  grade  VII  G  as  the  control  class  who  receive  conventional  learning  treatment.  This  instrument  were  tests  and observation sheets. The hypothesis test method used was one sample test and t-test independent sample. Based on the results of data analysis, the value of tcount= 7,171 t(0.05:31)=2,0395 with a significance level of 5% thus Ho rejected which means that the learning model of Missouri Mathematics Project with Two Stay Two Stray method was effective in terms of students’ mathematical problem solving ability. The  results of data analysis obtained the value of tcount= 6,476 t(0.05:62)=1,998971 thus Ho was rejected. This means that the learning model of Missouri Mathematics Project with Two Stay  Two  Stray  method  affected  the  ability  of  students'  mathematical  problem  solving.Keywords: Missouri Mathematics Project, Two Stay Two Stray, problem solving ability
OPTIMASI PORTOFOLIO SAHAM MENGGUNAKAN SEPARABLE PROGRAMMING Ifani Rahadian Saputri , Elly Arliani, M.Si
Jurnal Kajian dan Terapan Matematika Vol 7, No 2 (2018): Jurnal Matematika
Publisher : Jurnal Kajian dan Terapan Matematika

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AbstrakPermasalahan optimasi adalah permasalahan menemukan kondisi dimana fungsi tujuan mencapai nilai maksimum atau minimum. Permasalahan optimasi dapat diterapkan dalam masalah nyata dalam kehidupan manusia. Salah satu permasalahan optimasi adalah permasalahan portofolio saham. Penelitian ini bertujuan untuk membentuk model nonlinear pengembangan Mean Variance (extension MV model) dan model linear Mean Absolute Deviation (MAD) untuk masalah optimasi portofolio saham yang diselesaikan dengan Algoritma Genetika. Model untuk portofolio saham dalam penentuan jumlah dana yang akan diinvestasikan pada tiga saham BBNI, UNVR, dan ADHI periode 21 November 2016 – 20 November 2017 diperoleh hasil yaitu, dengan model nonlinear pengembangan Mean Variance (extension MV model) diperoleh jumlah dana yang diinvestasikan pada BBNI Rp 29.000.000,00 (29%), UNVR Rp 57.000.000,00 (57%), ADHI Rp 14.000.000,00 (14%), sedangkan dengan model linear Mean Absolute Deviation (MAD) diperoleh jumlah dana yang diinvestasikan pada BBNI Rp 70.000.000,00 (70%), UNVR Rp 30.000.000,00 (30%), ADHI Rp 0,00 (0%).  Kata kunci: Pemrograman Nonlinear, Separable Programming, Algoritma Genetika, Portofolio Saham. AbstractThe optimization problem is the problem of finding the condition where the objective function reaches the maximum or minimum value. Optimization problems can be applied in real problems in human life. One of the optimization issues is the stock portfolio problem. This study aims to form a nonlinear model of the development of Mean Variance (extension MV model) and the linear Mean Absolute Deviation (MAD) model for the problem of stock portfolio optimization completed with the Genetic Algorithm. The model for the stock portfolio in determining the amount of funds to be invested in the three stocks BBNI, UNVR, and ADHI period November 21, 2016 - November 20, 2017 obtained results that is, with nonlinear model development of Mean Variance (extension MV model) obtained the amount of funds invested in BBNI Rp 29.000.000,00 (29%), UNVR Rp 57.000.000,00 (57%), ADHI Rp 14.000.000,00 (14%), whereas with the linear Mean Absolute Deviation (MAD) model, the amount of funds invested on BBNI Rp 70.000.000,00 (70%), UNVR Rp 30.000.000,00 (30%), ADHI Rp 0,00 (0%). Keywords: Nonlinear Programming, Separable Programming, Genetic Algorithm, Stock Portfolio.
Peramalan banyaknya penderita demam berdarah dengue (DBD) di Kabupaten Sleman menggunakan model arima Viera Setya Damayanti; Elly Arliani
Jurnal Kajian dan Terapan Matematika Vol 8, No 3 (2022): Jurnal Kajian dan Terapan Matematika
Publisher : Jurnal Kajian dan Terapan Matematika

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Abstract

Kasus DBD merupakan salah satu masalah kesehatan di Indonesia yang belum dapat ditanggulangi. Kasus DBD di DIY masih tinggi di setiap tahunnya salah satunya di Kabupaten Sleman dan termasuk ke dalam KLB karena memiliki jumlah penduduk tertinggi di DIY yaitu 1.265.429 jiwa dengan kepadatan penduduk 2.076,32 jiwa/km2. Hal ini mengakibatkan penularan DBD di Kabupaten Sleman semakin rawan dan menyebar luas, serta seluruh wilayahnya merupakan endemik penyakit DBD. Penelitian ini bertujuan untuk mendeskripsikan model yang tepat untuk peramalan banyaknya penderita DBD dengan menggunakan metode ARIMA dan untuk mendeskripsikan hasil peramalan banyaknya penderita DBD di Kabupaten Sleman pada tahun 2022 – 2024. Hasil penelitian menunjukkan bahwa model ARIMA(2,1,0) merupakan model terbaik untuk melakukan peramalan banyaknya penderita DBD di Kabupaten Sleman. Berdasarkan model ARIMA(2,1,0), hasil peramalan banyaknya penderita DBD di Kabupaten Sleman pada tahun 2022 sebanyak 553 kasus, pada tahun 2023 sebanyak 867 kasus dan pada tahun 2024 sebanyak 479 kasus.
Accuracy of Self-Assessment and Peer Assessment in Learning : A Systematic Literature Review Yohana Dwi Kristiani Sinaga; Elly Arliani; Januarius Clief Ngala; Ni Luh Ika Tri Agustina
Jurnal Paedagogy Vol 11, No 2: Jurnal Paedagogy (April 2024)
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jp.v11i2.9417

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This study aims to explore the influence of self-assessment and peer assessment in learning, the factors affecting the accuracy of self-assessment and peer assessment, and efforts to enhance the accuracy of self-assessment and peer assessment. This research was a qualitative approach with a systematic literature review method. The data collected are from national and international scholarly journals related to self-assessment and peer assessment in learning, which were then analyzed using content analysis. According to the study's findings, using peer and self-evaluation to evaluate students' learning had a very beneficial effect. Thus, it should be put into practice. Additionally, a number of factors, such as self-confidence, emotional intelligence, self-perception of abilities, prior experience, feedback quality, assessment instrument clarity, assessor agreement, and trust in peer assessment, affect how accurately learners assess themselves and each other. Clear assessment criteria and procedures, which provide students direction for both their own and their peers' evaluations, can increase the accuracy of peer and self assessments. Good feedback is essential to improving both assessment techniques' accuracy. In addition, sufficient instruction for pupils is required to guarantee that evaluations are more precise, impartial, and beneficial.
Do Habits of Mind and Cognitive Style Affect Critical Thinking Ability of High School Students? Yohana Dwi Kristiani Sinaga; Elly Arliani
Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran Vol 10, No 3 (2024): September
Publisher : Universitas Pendidikan Mandalika (UNDIKMA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jk.v10i3.12730

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This research aims to analyze the influence of habits of mind and cognitive style (field dependent and field independent) on the critical thinking ability of high school students. This research employs a mixed-method approach with an explanatory sequential design and a QUAN → qual model. The population consists of all 11th-grade high school students in Sintang Regency, West Kalimantan Province, with a sample of 385 students and 19 students serving as interview informants. The instruments used include a critical thinking ability test, habits of mind questionnaire, GEFT, and interview guidelines. The analysis techniques employed are descriptive analysis, inferential analysis, and qualitative analysis based on Miles & Huberman. The results show that habits of mind and cognitive style simultaneously have a significant influence on critical thinking ability. Furthermore, based on the coefficient of determination, it is found that habits of mind and cognitive style together have the power to explain critical thinking ability. The implication is that teachers need to adjust learning strategies based on students' cognitive styles and develop habits of mind to improve their critical thinking skills.
Effectiveness of situation based learning model on problem solving abilities and mathematical disposition Sari, Anisa Fatma Kurnia; Arliani, Elly
Jurnal Riset Pendidikan Matematika Vol 10, No 1: May 2023
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jrpm.v10i1.56320

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This study aims to describe the effectiveness of the SBL learning model on the mathematical problem-solving ability and mathematical disposition of grade VIII Junior High School students. The lesson material focuses on the flat-sided shapes of prisms and pyramids. This is an experimental study that uses a one-group pretest-posttest design, and the study population consists of eighth grade students from junior high schools in Klaten, Central Java, which consists of eight classes. The sample was selected using cluster random sampling, and the treatment was administered to class VIII H using the SBL learning model. The study found that the SBL learning model was effective in improving the problem-solving abilities of junior high school students, with an N-gain score of 0.6231. However, it was not effective in improving their mathematical disposition, with an N-gain score of 0.3005. The application of the SBL learning model can be considered as a solution for developing students' mathematical problem-solving abilities.
Development of trigonometry module based on PBL that oriented to high school students' concept of understanding Bazuri, Ahmad; Arliani, Elly
Jurnal Riset Pendidikan Matematika Vol 9, No 1: May 2022
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jrpm.v9i1.50119

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This study aims to produce a problem-based learning module on trigonometry oriented towards the ability to understand concepts for grade X high school students and to describe the quality of the validity, practicality, and effectiveness of the module. This is a research and development with the ADDIE model, which includes five stages: analysis, design, development, implementation, and evaluation. The implementation of product development was conducted at the State Senior High School 1 Magelang, involving 36 students from class X MIPA 2. This research resulted in a trigonometry module based on problem-based learning syntax. The module is declared valid with an average assessment of experts' content of 4.24 (valid) and media experts of 4.45 (valid). The module was said to be practical, with the average student response questionnaire result of 3.93 (sufficient), the teacher's response questionnaire of 4.00 (practical), and the percentage of learning implementation of 95.24. With Minimum Completeness Criteria of 70, the module is declared effective with an average score of 80.72 for students' concept understanding, which is high, and the percentage of completeness is 87.88, which is good. Based upon the hypothesis test with a significance level of 0.05, it shows that the average understanding of students' concepts is more than 70.
IMPLEMENTASI PEMBELAJARAN MATEMATIKA BERWAWASAN LINGKUNGAN DENGAN PENDEKATAN KOOPERATIF GUNA MENGEMBANGKAN SIKAP RAMAH LINGKUNGAN DAN MENINGKATKAN HASIL BELAJAR SISWA Hidayati, Kana; Arliani, Elly; Retnawati, Heri; Isnaeni, Isnaeni
PYTHAGORAS Jurnal Pendidikan Matematika Vol 4, No 1: Juni 2008
Publisher : Department of Mathematics Education, Faculty of Mathematics and Natural Sciences, UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (128.707 KB) | DOI: 10.21831/pg.v4i1.685

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Penelitian ini bertujuan meningkatkan hasil belajar matematika dan mengembangkan sikap ramah lingkungan pada siswa SMA Muhammadiyah 1 Yogyakarta melalui pembelajaran matematika berwawasan lingkungan dengan pendekatan kooperatif serta mengetahui respons siswa terhadap kegiatan pembelajaran yang dilakukan. Kegiatan penelitian dilakukan melalui penelitian tindakan kelas. Tindakan dilaksanakan dalam 2 siklus pada kelas XI IPA 3 SMA Muhammadiyah 1 Yogyakarta. Kegiatan siklus I meliputi perencanaan, tindakan, observasi, dan refleksi. Kegiatan siklus II merupakan tindak lanjut dan modifikasi dari siklus I. Pengumpulan data dilakukan menggunakan pedoman wawancara, lembar observasi pelaksanaan pembelajaran, soal kuis dan tugas, serta angket respons siswa. Pendekatan kooperatif dalam penelitian ini menggunakan tipe Student Teams-Achievement Divitions (STAD) dan dilakukan pada materi Peluang. Hasil penelitian menunjukkan bahwa melalui kegiatan pembelajaran matematika berwawasan lingkungan dengan pendekatan kooperatif tipe STAD terjadi peningkatan hasil belajar siswa pada materi Peluang dan dapat mengembangkan sikap ramah lingkungan pada siswa. Kegiatan pembelajaran matematika tersebut dilakukan dengan tahapan–tahapan sebagai berikut: (1) Class Presentation (Presentasi Kelas), (2) Team Study, (3) Quizzes (Kuis), dan (4) Reward (Penghargaan kelompok). Respons siswa terhadap kegiatan pembelajaran baik dan siswa merasa semakin peduli dengan lingkungannya dan semakin mengerti bahwa matematika ternyata sangat dekat dengan kehidupan sehari-hari para siswa.  Kata kunci :  Pembelajaran kooperatif, berwawasan lingkungan, hasil belajar, sikap                        ramah    lingkungan 
IDENTIFIKASI KEBUTUHAN SOFT SKILL MAHASISWAPROGRAM STUDI PENDIDIKAN MATEMATIKA FMIPA UNYDALAM RANGKA MEMBENTUK INSAN CENDEKIA, MANDIRI,DAN BERNURANI Arliani, Elly; Hidayati, Kana
PYTHAGORAS Jurnal Pendidikan Matematika Vol 7, No 1: Juni 2012
Publisher : Department of Mathematics Education, Faculty of Mathematics and Natural Sciences, UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (93.537 KB) | DOI: 10.21831/pg.v7i1.2831

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Penelitian ini bertujuan untuk: (1) Mendeskripsikan kondisi soft skill mahasiswa Program StudiPendidikan Matematika saat ini, (2) Mengidentifikasi soft skill apa saja yang dibutuhkan oleh mahasiswadalam rangka membentuk insan cendekia, mandiri, dan bernurani. Penelitian ini merupakan penelitiandeskriptif. Populasi penelitian adalah seluruh mahasiswa Program Studi Pendidikan Matematika FMIPAUNY yang tercatat masih aktif yakni 680 mahasiswa. Sampel penelitian diambil dengan mengacu pada tabelKrecjie. Data dikumpulkan melalui instrumen penelitian berupa angket dan pedoman wawancara untukmahasiswa. Untuk memperkuat temuan yang diperoleh dari mahasiswa, wawancara juga dilakukan kepadabeberapa dosen Program Studi Pendidikan Matematika FMIPA UNY. Data dianalisis dengan teknik AnalisisData Deskriptif. Hasil penelitian ini adalah: (1) Kondisi soft skill mahasiswa Program Studi PendidikanMatematika FMIPA UNY saat ini adalah sebagai berikut: (a) Aspek kepribadian termasuk kategori sedang,(b) Aspek keterampilan berinteraksi sosial termasuk baik, (c) Aspek keterampilan berkomunikasi termasukkategori baik, (d) Aspek keterampilan presentasi dalam kategori baik, (e) Aspek keterampilan bekerjasamadalam tim termasuk sudah baik, (f) Aspek keterampilan berinisiatif termasuk kategori sedang, dan (g) Aspekketerampilan beradaptasi termasuk kategori sudah baik. (2) Soft skill yang paling dibutuhkan, sebagian besarmahasiswa menganggap bahwa secara berturut-turut aspek kepribadian, kemampuan berkomunikasi, dankemampuan berinisiatif merupakan aspek prioritas utama yang harus diperhatikan untuk menuju terwujudnyainsan cendekia, mandiri, bernurani sedangkan aspek keempat yaitu keterampilan presentasi merupakan aspekprioritas terakhir.