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All Journal JURNAL EKSAKTA PENDIDIKAN (JEP) Pelita Eksakta Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Journal of Mathematics UNP
Syafriandi Syafriandi
Departemen Statistika Universitas Negeri Padang
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Engineering Mathematics Physics Other

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Analysis of Teacher’s Competence About Mathematics Materials for National Final Examination Syafriandi Syafriandi; Dina Fitria
Pelita Eksakta Vol 1 No 1 (2018): Pelita Eksakta Vol. 1 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol1-iss1/5

Abstract

Principal component in teaching mathematics for teacher is professional competence. It cover how the teacher understand the material of subject matter itself. Teaching Mathematics in Junior High School, teacher have to understand completely in Numbers, Algebra, Geometry and measurements, and also Statistics and probability. Based on the exam and discussion in workshop, known that math teacher in Pesisir Selatan having problems in teaching Geometry and measurement and also Statistics and probability. The problems are complexity of teaching materials, error in translating competence standard and basic competence into lesson plan, time management and student’s motivation in studying math. Solution that offered to the teacher are translating basic competence into learning process and trick how to teach Geometry and Statistics especially. Teaching geometry by explain all geometry object, i.e. plane and space simultaneously and compare each object directly. Teaching statistics and probability starting by counting process.
Designing Student’s Worksheet on Statistical Topics using Lesson Study Approach in Collaboration with MGMP Matematika SMA Pesisir Selatan Syafriandi Syafriandi; Nonong Amalita; Dina Fitria
Pelita Eksakta Vol 3 No 2 (2020): Pelita Eksakta Vol. 3 No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol3-iss2/144

Abstract

Writing students worksheet is a routine task for each teacher. In this workshop, teachers design the worksheet using lesson study approach. Before design the learning material which is lesson plan and student’s worksheet, the teacher remind the basic concept of probability theory and its related topic. Related topics discuss are probability function, special distribution function, they are binomial and normal distribution. As assessment to the teacher, the devotee gave pretest in the first meeting and post test at the end of workshop. It item consist of lesson study concept, probability function, binomial and normal distribution. Depend on it, we see the increment of teacher’s competency.
Training and Workshop to Apply Mathematical Literacy in Classroom for Mathematics Teachers in Dharmasraya Defri Ahmad; Syafriandi Syafriandi; Jazwinarti Jazwinarti
Pelita Eksakta Vol 2 No 1 (2019): Pelita Eksakta Vol. 2 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol2-iss1/62

Abstract

Abstract – 4.0 industry revolution era brings people to have multi-skill ability to survive. In order to prepare multi-skill people Indonesian government create school literacy actions, but this program needs some teachers with strong understanding about literacy. In fact, many teacher do not understand to much about literacy. They only think that literacy is about read. To solve this problem, training and workshop about literacy is needed. Teachers have to know about literacy more spesific especialy literacy that related to their subject. A training and workshop has been done to Junior High School Mathematics teachers in Dharmasraya. In this activity, teachers study about basic understanding of literacy, and mathematical literacy. By some example, teacher try to solve, and to create some mathematics problem related to mathematics literacy. By questioneering this activity teachers say that this program is very good in material, instructor, and activity.
Workshop on High Order Thinking Skills Mathematical Problems to Increase Teachers Teaching Abilities Defri Ahmad; Syafriandi Syafriandi; Media Rosha
Pelita Eksakta Vol 3 No 1 (2020): Pelita Eksakta Vol. 3 No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol3-iss1/110

Abstract

Abstract – To accomodate High Order Thinking Skills (HOTS) in classrom, we need to consider curricula, learning process, and assesment. Learning process and assesment have an essential requirement i.e. teacher’s ability. Government has done some activity to increase teacher’s ability to apply HOTS in classrom, but teachers need more. To keep their motivation and ability, teachers need a continue activity related to HOTS. Lecturer is an academic expert who teach in university level. In Indonesia, service to community is one of obligation for lecturer. Hence increasing teachers understanding about HOTS is one of lecturer’s duty. Training and workshops has been designed to rose teachers ability in creating HOTS problems and teaching using those problems. In this activity, teachers are studied about HOTS concept, the government policy about HOTS, solve some HOTS problem in National level test, and how to create HOTS base mathematical problems. For the next activity, teachers are asked to create some HOTS base mathematical problems, and design a learning trajectoty/ design to put their HOTS problem in learning process. Lastly, base on teacher’s satisfaction questionnaire, teachers are very happy to get this activity for the activity’s programme, mastery of topics, and teacher ‘s needs.
Upaya Peningkatan Kemampuan Analisis Data Penelitian Menggunakan Software Statistik Bagi Guru-Guru Matematika SMA Kabupaten Pesisir Selatan Syafriandi Syafriandi; Nonong Amalita; Yenni Kurniawati
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 2 No 1 (2018): JEP : Jurnal Eksakta Pendidikan
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jep/vol2-iss1/61

Abstract

Scientific publication is one of teacher’s duty to increase their rank, form III/b to III/c. Base on interview with Senior High School teachers at Pesisir Selatan regency, we know that difficult for them to produce scientific publication caused by their ability on choosing data analysis technique which relevant to their case, teachers cannot use the statistical software because its not familiar for them, and they have low quality in interpreting data analysis result. To solve the problems, we offer a workshop of data analysis on scientific writing using statistical software. The target audiences of this workshop is a Group of Teachers on Mathematics Major (MGMP) in Pesisir Selatan. In this workshop, participants are given the basic concept and how to write a scientific writing, basic concept of statistics, and introduction to statistical software i.e. Minitab and SPSS. Beside that, with practical work, the participants learn how to use statistical software and interpretate the data analysis result. Result of the workshops are (1) increasing the ability of participants skills on analysis the data using statistical software and interpretate it.
Local Instructional Theory Topik Dua Tipe Kesalahan dalam Pengujian Hipotesis Syafriandi Syafriandi; Ahmad Fauzan; Lufri Lufri; Armiati Armiati
JURNAL EKSAKTA PENDIDIKAN (JEP) Vol 5 No 2 (2021): JEP (Jurnal Eksakta Pendidikan)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jep/vol5-iss2/612

Abstract

Two types of errors are one of the important topics in hypothesis testing. Studying the two types of errors is not only studying how the procedure determines the probability of making an error, but it is very important to study the theoretical concepts of the two types of errors. To achieve this goal, a learning design is needed that can facilitate students to construct their own concepts of the two types of errors. The learning design developed is local instructional theory resulting from the cyclic process of hypothetical learning trajectory. The type of research used is design research using the model developed by Gravemeijer and Cobb. The test subjects used in this study were students of the Ma thematics Education Study Program, FMIPA UNP who took the Elementary Statistics Course in the July – December 2019 semester. This research resulted in a very practical local instructional theory used to facilitate students in carrying out horizontal and vertical mathematization processes, so that students are able to construct their own concepts of two types of errors in hypothesis testing.
Pembentukan Portofolio Optimal Menggunakan Metode Optimasi Multiobjektif pada Saham di Bursa Efek Indonesia Doni Rahmat Septiano; Syafriandi Syafriand; Media Rosha
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (364.413 KB) | DOI: 10.24036/unpjomath.v4i2.6298

Abstract

Abstract –Multi-objective optimization is a method of formation of the portfolio was conducted in a way to maximize the level of expected return and risk of the portfolio at the same time with different weighting coefficients k value that states how much risk was taken. The purpose of this research is to form the optimal portfolio based on the properties of the investor. This research was based on LQ-45 stocks case studies in the period trading from February-July 2015. The optimal portfolio for risk seeker investors is when  with expected return at 0.18674% and the shares was invested only one stocks. At the risk indifference investors, the portfolio was formed when  in which the invested shares were nine stocks. The expected return rate was 0.11463% to 0.17998%. As of risk-averse investors, a portfolio was formed when  with invested stocks were ten stocks with expected return at 0.10837%. Keywords –return, expected return, risk, multi-objective optimization, portfolio
Nagari Tanjung Balik Menuju Digitalisasi Data Syafriandi Syafriandi; Nonong Amalita; Dodi Vionanda; Dina Fitria; Zilrahmi Zilrahmi; Yarman Yarman
Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Vol 22, No 3 (2022): Suluah Bendang: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/sb.03280

Abstract

Kegiatan pembangunan hendaknya dilaksanakan dengan menggunakan perencanaan yang tepat. Perencanaan ini memerlukan informasi yang diperoleh dengan adanya data.  Nagari Tanjung Balik Kecamatan X Koto Singkarak merupakan salah satu nagari yang termasuk dalam Kecamatan X Koto Singakarak, Kabupaten Solok. Untuk perencanaan pembangunan, nagari ini memerlukan adanya informasi dan data. Namun, nagari ini tidak memiliki akses ke data sektoral yang terhimpun di BPS. Di sisi lain, nagari ini juga dihadapkan pada keterbatasan sumber daya yang memiliki pengetahuan tentang Statistika. Oleh karena itu, tim pengabdi melaksanakan Kegiatan Pengabdian kepada Masyarakat di Nagari Tanjung Balik untuk membantu mengatasi kedua masalah di atas.  Dari kegiatan pengabdian ini, pemerintah Nagari Tanjung Balik memiliki database yang terbaru, akurat, dan mudah diakses yang bisa digunakan untuk mengetahui informasi yang detail tentang masyarakat nagari ataupun untuk memetakan potensi dan masalah di nagari. Begitu pula, dari kegiatan ini,  pemerintah nagari telah memiliki kader yang bisa melakukan pengumpulan data di waktu yang akan datang dengan menggunakan aplikasi RSN dan mengelola database yang telah dibangun.
Co-Authors Ahmad Fauzan Armiati Armiati Defri Ahmad Dina Fitria Dina Fitria Dodi Vionanda Doni Rahmat Septiano Jazwinarti Jazwinarti Lufri Lufri Media Rosha Media Rosha Nonong Amalita Yarman Yarman Yenni Kurniawati Zilrahmi Zilrahmi