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All Journal Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika Al-Jabar : Jurnal Pendidikan Matematika Journal of Medives JURNAL SINEKTIK Al-Ta'lim Jurnal Ilmiah Pendidikan Matematika Al Qalasadi Primatika : Jurnal Pendidikan Matematika Mosharafa: Jurnal Pendidikan Matematika Jumper : Journal of Educational Multidisciplinary Research OMEGA: Jurnal Keilmuan Pendidikan Matematika Jaliye: Jurnal Abdimas, Loyalitas, dan Edukasi AMMA : Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat Inovasi Indonesia
bettri yustinaningrum, bettri
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Religion Agriculture, Biological Sciences & Forestry Humanities Chemistry Computer Science & IT Economics, Econometrics & Finance Education Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Nursing Public Health Social Sciences Other

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Validitas Perangkat Realistic Mathematics Berbasis Kearifan Budaya Lokal Gayo Yustinaningrum, Bettri; Nurmalina, Nurmalina; Nurliana, Nurliana
Jurnal Pendidikan Matematika IKIP Veteran Semarang Vol 3 No 1 (2019): Journal of Medives : Journal of Mathematics Education IKIP Veteran Semarang
Publisher : Institut Keguruan dan Ilmu Pendidikan Veteran Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31331/medivesveteran.v3i1.685

Abstract

Realistic Mathematics berbasis kearifan budaya lokal menekankan pada pembelajaran matematika yang dikaitkan dengan realita dan aktivitas kebudayaan siswa. Tujuan dari penelitian ini adalah untuk mengembangkan perangkat pembelajaran Realistic Mathematic s berbasis kearifan budaya lokal suku Gayo pada materi geometri. Pengembangan perangkat pembelajaran menggunakan model 4-D yang terdiri atas tahap menefinisikan (define), mendesain (design), mengembangkan (development), dan menyebarkan (dissemination). Perangkat pembelajaran yang dibuat adalah silabus, RPP, LKS, dan buku siswa. Melalui hasil pengembangan perangkat pembelajaran diperoleh bahwa perangkat pembelajaran valid berdasarkan hasil validitas pakar. Kata Kunci : kearifan budaya lokal, Realistic Mathematic s, suku Gayo.   ABSTRACT Realistic Mathematics based on local wisdom emphasizes the mathematics learning which is associated with students’ reality and cultural activities. The purpose of this research is to develop Realistic Mathematic s learning kit based on the local wisdom of Gayo on geometry. The learning kits are developed by using the 4-D model (define, design, develop, and dissemination). The learning kits consist of syllabus, lesson plans, student worksheets, and student books. The learning kits are valid based on the face validity. Keywords: local wisdom, Realistic Mathematic s, Gayonese.
MODEL PEMBELAJARAN MATEMATIKA ABAD 21 (KAJIAN MODEL PROJECT BASED LEARNING) Yustinaningrum, Bettri
JURNAL SINEKTIK Vol 2, No 1 (2019): Jurnal-Sinektik:Juni-2019
Publisher : FKIP-Universitas Slamet Riyadi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Di abad-21 ini stakeholder dalam dunia pendidikan ditantang untuk mampu menciptakan tatanan pendidikan yang dapat ikut menghasilkan sumber daya pemikir yang mampu ikut membangun tatanan sosial ekonomi sadar-pengetahuan sebagaimana layaknya warga dunia di abad-21. Guru yang menyadari pentingnya pendidikan dalam menjawab tuntutan jaman di era ekonomi global pasti akan berusaha untuk membekali peserta didik mereka dengan keterampilan yang dibutuhkan pada abad 21. Salah satu model pembelajaran yang dapat diterapkan guru dalam menghadapi tantangan di abad-21 adalah model Project Based Learning (PBL). Melalui model  Project Based Learning, peserta didik menggunakan kemampuan berkomunikasi dan keterampilan untuk menyampaikan menyampaikan gagasan atau ide, organisasi dan management waktu, keterampilan berinkuiri, keterampilan self assessment dan refleksi, partisipasi dalam kelompok, serta keterampilan leadership.
Penggunaan Geogebra Dalam Mencari Luas Lingkaran Tanjung, Fina Melini Panduwinata; Yustinaningrum, Bettri
OMEGA: Jurnal Keilmuan Pendidikan Matematika Vol. 3 No. 2 (2024): OMEGA
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan Dan Ilmu Pendidikan, Universitas Alwashliyah Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/jkpm.v3i2.682

Abstract

Geogebra dapat ditemukan dalam aplikasi yang mudah ditemukan dalam platform google dan aplikasi. Hubungan dalam cara penggunaan dijelaskan dalam tulisan. Dalam penelitian ini menggunakan jenis penelitian tindakan kelas dengan menggunakan berbagai instrumen kepada para siswa untuk menemukan hasil penelitian yang terbaik. Ketika sudah dilakukan penelitian, maka akan ditemukan hasil siswa yang dapat dengan mudah dapat mengaplikasikan aplikasi geogebra dalam menemukan luas lingkaran. Jenis penelitian yang digunakan dalam penelitian ini adalah penelitian tindakan kelas. Penelitian tindakan kelas merupakan “suatu proses penelitian yang merupakan paparan gabungan defenisi dari tiga kata yaitu penelitian, tindakan, dan kelas. Dimana penelitian adalah kegiatan mencermati suatu objek merupakan aturan tertentu untuk memperoleh data atau informasi yang bermanfaat bagi peneliti atau orang-orang yang berkepentingan dalam peningkatan kualitas di berbagai bidang. Setelah dilaksanakan kegiatan pelatihan penggunaan aplikasi geogebra pada pembelajaran materi lingkaran pada siswa. Siswa memahami dan mengenal aplikasi tersebut. Siswa juga menjadi ahli dalam membuat lingkaran dan unsurunsurnya pada aplikasi Geogebra. Dengan menjadi ahli dalam penggunaan aplikasi Geogebra, diharapkan siswa dapat memahami materi lingkaran lebih dalam dan juga materi selanjutnya yang berkaitan dengan materi yang sedang dipelajari.
PENGEMBANGAN PERANGKAT PEMBELAJARAN DENGAN PENDEKATAN REALISTIC MATHEMATICS MATERI GEOMETRI PADA MTs BERBASIS KEARIFAN BUDAYA LOKAL SUKU GAYO Yustinaningrum, Bettri
Al-Khawarizmi Vol 1, No 2 (2017): Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/jppm.v1i2.3426

Abstract

Realistic Mathematics approach based on local wisdom emphasizes the learning of mathematics associated with reality and cultural activities of students. The aim of this study was to: (1) develop learning tools with local wisdom approach Gayo based on realistic mathematics materials Geometry at MTs throughout Central Aceh, (2) promoting the development of the mathematics learning approach to realistic mathematics at MTs throughout Central Aceh through seminars and workshops. Development of the learning device uses 4-D models consist of define, design, development and dissemination. Disseminate phase is the stage of dissemination of devices that have been developed on a wider scale is done through workshops with participants of all teachers of mathematics MTs in Central Aceh. Learning tools created is the syllabus, lesson plans, worksheets, books Student and THB. The results of the learning device test stated that learning tools are valid, effective and practical.Realistic Mathematics approach based on local wisdom emphasizes the learning of mathematics associated with reality and cultural activities of students. The aim of this study was to: (1) develop learning tools with local wisdom approach Gayo based on realistic mathematics materials Geometry at MTs throughout Central Aceh, (2) promoting the development of the mathematics learning approach to realistic mathematics at MTs throughout Central Aceh through seminars and workshops. Development of the learning device uses 4-D models consist of define, design, development and dissemination. Disseminate phase is the stage of dissemination of devices that have been developed on a wider scale is done through workshops with participants of all teachers of mathematics MTs in Central Aceh. Learning tools created is the syllabus, lesson plans, worksheets, books Student and THB. The results of the learning device test stated that learning tools are valid, effective and practical.
Kajian meta analisis: Effect size hubungan self efficacy terhadap prestasi belajar Yustinaningrum, Bettri; Tanjung, Fina Melini Panduwinata; Daulay, Leny Agustina
Primatika : Jurnal Pendidikan Matematika Vol. 13 No. 2 (2024)
Publisher : Program Studi Pendidikan Matematika, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/primatika.v13i2.4035

Abstract

Self efficacy memainkan peran penting dalam penentuan prestasi belajar siswa. Penelitian ini mempunyai tujuan untuk mengukur effect size hubungan diantara prestasi belajar dan self efficacy. Studi ini berbentuk meta analisis. Tahapan analisis menggunakan tahapan PRISMA dan memanfaatkan software OpenMEE. Berdasarkan hasil analisis diperoleh nilai P value sebesar (<0,001) berarti nilainya dibawah 0,05 sehingga terbentuk korelasi yang signifikan diantara prestasi belajar dan self efficacy. Nilai estimate effect size bernilai 0,573 tergolong sedang. Dari kedua nilai tersebut didapat kesimpulan bahwa ada hubungan signifikan diantara prestasi belajar dan self efficacy, namun hubungan tersebut berkekuatan sedang. Untuk variable moderat, ketiga subgrup yaitu SMP, SMA, dan PT mempunyai nilai rata-rata effect size yang signifikan karena nilai P value kurang dari 0,05.
Systematic Literature Review: Ekplorasi Etnomatematika Pada Rumah Adat di Indonesia Yustinaningrum, Bettri
Jumper: Journal of Educational Multidisciplinary Research Vol 3 No 1 (2024): Jumper: Journal of Educational Multidisciplinary Research
Publisher : LSM Catimore dan Sahabat Jl. Paya Ilang/Pertamina Desa Lemah Burbana, Takengon, Aceh Tengah 24552

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56921/jumper.v3i1.159

Abstract

Indonesia has various cultural diversity, one of which is traditional houses. Each region has traditional houses that have their own style. The aim of this research is to explore the ethnomathematics found in traditional houses through literature studies from previous research. The research method applied is a systematic literature review. The search for journals and proceedings used the Google Scholar database via publish or perish, with a time span from 2019 to 2023. Based on the search results using publish or perish, 220 articles were obtained. The articles were then selected based on exclusion and inclusion criteria to become 22. The results of the analysis showed that the concept of mathematics is often found in home ornaments and architecture. Mathematical concepts discovered include flat shapes, spatial shapes, transformation geometry, similarity, and congruence. Mathematical concepts found in traditional houses can be implemented into learning by using them as questions, learning activities, learning media, and learning resources.
The Implementation of E-Learning Web-based Model Centric Course (Edmodo) toward The Mathematics’ Interest and Learning Outcomes Yustinaningrum, Bettri
Al-Jabar: Jurnal Pendidikan Matematika Vol 9 No 1 (2018): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v9i1.2175

Abstract

The aim of this research is to know the effect of application of E-Learning model based on Web-Centric Course with Edmodo application media to increase: (1) the interesting of learning mathematics, (2) The mathematics student learning outcomes. The research method is used in quantitative research with the quasi-type experimental design, as well as research design using the pre-test and post-test control group. The Instrument has used the test of mathematics learning outcomes and questionnaire interest in learning mathematics students. The data hypothesis test uses the t-test involving pre-requisite tests (normality and homogeneity) beforehand. The result of this research is the application of E-Learning model based on Web-Centric Course with Edmodo application media has an effect on: (1) the student learning outcomes of mathematics; (2) the interesting of learning mathematics students. 
Analysis of Consumers’ Perception at the Food Court of Lampung Walk by Using Multidimensional Scaling Approach Andriani, Siska; Rakhmawati M, Rosida; Pratiwi, Dona Dinda; Ariawan, Feri; Murtianto, Yanuar Hery; Yustinaningrum, Bettri
Al-Jabar: Jurnal Pendidikan Matematika Vol 9 No 2 (2018): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v9i2.3526

Abstract

This research aims to determine customer perceptions of food outlets located on Lampung Walk and to find out the similarities between food outlets on Lampung Walk using Multidimensional Scaling analysis. The methods used in this reseach are descriptive method and analytic survey using inferential statistics. The research places are the food outlet of Kedai Urang, el’s coffee, dimsum moresto, pondok hijau and sup duren ewok. The results of this research known that the highest customer perceptions is in Kedai Urang with affordable price attributes, more portions, good taste, neat and clean presentation. So that for other business developers can pay attention to the attributes of consumer perception for business continuity.
Development of a Module with a RME Approach on the Topic Systems of Linear Equations in Two Variables Daulay, Leni Agustina; Yustinaningrum, Bettri; Pasaribu, Feri Tiona; Manurung, Sri Lestari; Putri, Elika
AT-TA'LIM Vol 32, No 2 (2025)
Publisher : Institut Agama Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/jt.v32i2.986

Abstract

This research seeks to create legitimate and practical teaching materials in the form of a module utilizing a realistic mathematics education approach focused on the topic of systems of linear equations in two variables. This study utilizes the research and development (RD) approach, specifically the Thiagarajan 4-D model, which consists of four stages: (1) definition, (2) design, (3) development, and (4) dissemination. We conducted the research at MTsN 1 Central Aceh. Two classes, each with high and moderate abilities, participated in the research. The trial analysis yielded the following findings: (1) Validity, as two experts validated the teaching materials; (2) Practicality, as demonstrated by an average implementation of the learning syntax exceeding 75%, an average student activity exceeding 75%, extremely positive student and teacher responses to the module, and a classification of the developed module as practical. According to the results of the students' learning tests, 15 students completed the requirements out of 19 students in the high-ability class, and 14 students completed the requirements out of 19 students in the medium-ability class. Consequently, we categorize the percentage of students who have met the requirements as excellent. The module created utilizing a realistic mathematics education technique for the topic of systems of linear equations in two variables for eighth grade is deemed viable, indicating it is both valid and practical.
Kesalahan Siswa Dalam Memecahkan Masalah Trigonometri Ditinjau dari Indikator Polya Gradini, Ega; Yustinaningrum, Bettri; Safitri, Dina
Mosharafa: Jurnal Pendidikan Matematika Vol. 11 No. 1 (2022): Januari
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v11i1.686

Abstract

Siswa mengalami kesulitan dalam memecahkan masalah Trigonometri yang berdampak pada rendahnya hasil belajar. Artikel ini bertujuan untuk menganalisis kesalahan siswa memecahkan masalah trigonometri ditinjau dari strategi pemecahan masalah Polya. Penelitian ini merupakan penelitian eksploratif menggunakan pendekatan kualitatif deskriptif. Penelitian dilaksanakan dengan melibatkan 1 guru dan 20 siswa SMA. Data penelitian ini dikumpulkan melalui tes dan wawancara. Tes terdiri atas 5 masalah Trigonometri. Wawancara semi terstruktur diberikan pada; (1) guru untuk mengetahui kesulitan yang dialami siswa selama proses pembelajaran Trigonometri, dan (2) siswa untuk mengidentifikasi kesalahan dalam memecahkan masalah. Data dianalisis dengan tahapan berikut; (1) jawaban siswa diperiksa lalu di hitung skor untuk setiap masalah, (2) di identifikasi jenis kesalahan siswa pada setiap masalah, (3) persentase banyaknya siswa dihitung pada tiap jenis kesalahan, dan (4) siswa yang melakukan kesalahan diwawancara untuk mengetahui penyebab dan jenis kesalahan. Penelitian ini menemukan bahwa kesalahan siswa dalam memecahkan masalah Trigonometri adalah: (i) Kesalahan memahami masalah Trigonometri (57,73%); (ii) Kesalahan dalam merencanakan strategi (9,27%); (iii) Kesalahan menerapkan solusi (15,83%); dan (iv) kesalahan dalam memeriksa kembali (17,16%). Students have difficulty in solving trigonometric problems which have an impact on low learning outcomes. This article aims to analyze students' errors in solving trigonometric problems in terms of Polya's problem-solving strategy. This research is exploratory research using a descriptive qualitative approach. The research was conducted by involving 1 teacher and 20 high school students. The data of this study were collected through tests and interviews. The test consists of 5 Trigonometry problems. Semi-structured interviews were given on; (1) teachers to find out the difficulties experienced by students during the Trigonometry learning process, and (2) students to identify errors in solving problems. The data were analyzed in the following steps; (1) student answers are checked and then the score is calculated for each problem, (2) the types of student errors are identified in each problem, (3) the percentage of the number of students is calculated for each type of error, and (4) students who make mistakes are interviewed to find out the cause and the type of error. This study found that students' errors in solving Trigonometric problems were: (i) Misunderstanding of Trigonometric problems (57.73%); (ii) Errors in devising a plan (9.27%); (iii) Error in performing the plan (15.83%); and (iv) errors in looking back/ confirmation of the answer (17.16%).
Co-Authors Ahmad, Nurul Qomariyah Aini Nurul Alianur, Mudfar Ariawan, Feri Daulay, Leny Agustina Dona Dinda Pratiwi Edy Saputra Ega Gradini Feri Tiona Pasaribu Leni Agustina Daulay Lubis, Nur Ainun Mandasari, Lola Nurhayati Nurhayati NURLIANA NURLIANA Nurmalina Nurmalina, Nurmalina Putri, Elika Rosida Rakhmawati Safitri, Dina Siska Andriani Sri Lestari Manurung, Sri Lestari Tanjung, Fina Melini Panduwinata Yanuar Hery Murtianto