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All Journal JOURNAL OF SCIENCE AND SOCIAL RESEARCH Al-Irsyad Journal of Mathematics Education Media Pendidikan Matematika
Nayla Aiwina Putri
Universitas Royal
Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Mathematics Social Sciences

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KEMAMPUAN KONEKSI MATEMATIS SISWA DENGAN MENGGUNAKAN PENDEKATAN MATEMATIKA REALISTIK Nurullita Astriani; Muhammad Bayu Al Dhana; Lola Zeramenda Br Tarigan; Nayla Aiwina Putri
Al-Irsyad Journal of Mathematics Education Vol 4 No 2 (2025): AL–IRSYAD JOURNAL OF MATHEMATICS EDUCATION
Publisher : Sekolah Tinggi Keguruan dan Ilmu Pendidikan Darud Da'wah Wal Irsyad Pinrang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58917/ijme.v4i2.204

Abstract

ABSTRACT Mathematical connection ability is one of the most important abilities because it will help mastery of meaningful conceptual understanding and help complete problem-solving tasks through the relationship between mathematical concepts and between mathematical concepts and concepts in other disciplines. With a realistic mathematical approach, it is seen as being able to provide learning that will have a good impact on students' mathematical connection abilities because in learning it will be linked to the real world which is used as a basis for understanding mathematical concepts so that students understand the benefits of mathematics. The purpose of this research aims to analyze students' mathematical connection abilities using a realistic mathematical approach. This study is a Quasi Experiment study. The population of this study was all students of class VIII of SMP Negeri 1 Pangkalan Susu. The research sample was taken from two classes, namely class VIII-1 and VIII-2 with the Simple Random Sampling Technique. The instrument of this study was a test, namely to measure mathematical connection abilities. Data analysis of students' mathematical connection ability test results in the form of descriptive data analysis, normality tests, homogeneity tests and hypothesis tests. The results showed that the mathematical connection abilities of students who were given learning with a realistic mathematical approach were better than the mathematical connection abilities of students who were given conventional learning. Keywords : Mathematical Connection Ability; Realistic Mathematics Approach ABSTRAK Kemampuan koneksi matematis merupakan salah satu kemampuan yang sangat penting dikarenakan akan membantu penguasaan pemahaman konsep yang bermakna dan membantu menyelesaikan tugas pemecahan masalah melalui keterkaitan antar konsep matematika dan antara konsep matematika dengan konsep dalam disiplin lain. Dengan pendekatan matematika realistik dipandang dapat memberikan pembelajaran yang akan membawa dampak baik terhadap kemampuan koneksi matematis siswa karena di dalam pembelajaran akan dikaitkan dengan dunia nyata yang digunakan sebagai dasar di dalam memahami konsep matematika sehingga siswa memahami manfaat dari matematika tersebut. Tujuan dari penelitian ini bertujuan untuk menganalisis kemampuan koneksi matematis siswa dengan menggunakan pendekatan matematika realistik. Penelitian ini merupakan penelitian Quasi Experiment. Populasi penelitian ini adalah seluruh siswa kelas VIII SMP Negeri 1 Pangkalan Susu. Sampel penelitian diambil dua kelas yaitu kelas VIII-1 dan VIII-2 dengan Teknik Simple Random Sampling. Instrumen penelitian ini adalah tes yaitu untuk mengukur kemampuan koneksi matematis. Analisis data hasil tes kemampuan koneksi matematis siswa berupa analisis deskriptif data, uji normalitas, uji homogenitas dan uji hipotesis. Hasil penelitian menunjukkan bahwa kemampuan koneksi matematis siswa yang diberi pembelajaran dengan pendekatan matematika realistik lebih baik dari pada kemampuan koneksi matematis siswa yang diberi pembelajaran konvensional. Kata kunci: Kemampuan Koneksi Matematis; Pendekatan Matematika Realistik.
Eksplorasi Etnomatematika Geometri pada Arsitektur dan Lingkungan Pantai Sejarah Kabupaten Batubara: Pendekatan Deskriptif Kualitatif Sisca Sri Dewi Saragih; Khofifa Romaito Siregar; Hokkop Efendi Hasibuan; Nayla Aiwina Putri
Media Pendidikan Matematika Vol. 13 No. 2 (2025): J-MPM
Publisher : Program Studi Pendidikan Matematika, FSTT, Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/mpm.v13i2.18355

Abstract

Ethnomathematics is an approach that examines the relationship between mathematics and cultural practices in everyday life. Natural environments and traditional architectural structures contain rich forms and patterns that can be analyzed through mathematical concepts, particularly geometry. This study aims to explore the representation of geometric concepts found in the architectural structures and natural surroundings of Pantai Sejarah Batubara. A descriptive qualitative approach was employed, using observations, documentation, and informal interviews with local communities and site managers as data collection techniques. The findings reveal the presence of various geometric forms such as rectangles, squares, triangles, circles, cubes, blocks, prisms, and natural spirals in gazebos, entrance gates, wave breakers, ocean wave patterns, and mollusk shells. These results indicate that Pantai Sejarah Batubara holds significant potential as a contextual learning resource for geometry through an ethnomathematical perspective. This study contributes to the development of culturally grounded and environmentally based mathematics learning.
PEMODELAN PERTUMBUHAN PENDUDUK KABUPATEN ASAHAN MENGGUNAKAN PERSAMAAN DIFERENSIAL MODEL EKSPONENSIAL DAN MAPE Sisca Sri Dewi Saragih; Khofifa Romaito Siregar; Nayla Aiwina Putri
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol. 9 No. 3 (2026): June 2026
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v9i3.6521

Abstract

Abstract: Population growth is an important factor in regional development planning because it affects the provision of public services and infrastructure. This study aims to model the population growth of Asahan Regency using an exponential differential equation and evaluate the accuracy of the resulting predictions. A descriptive quantitative approach was employed using population data from Asahan Regency for the period 2021–2025 obtained from the Central Bureau of Statistics (BPS). The analysis involved constructing several exponential growth models and assessing their predictive performance using the Mean Absolute Percentage Error (MAPE). The results indicate that Exponential Model IV is the most accurate model, with a MAPE value of 0.2646%. Based on this model, the population of Asahan Regency is projected to increase from 838,852 people in 2026 to 898,377 people in 2030. These findings demonstrate that the exponential differential equation model provides highly accurate short-term population forecasts and can be utilized as a reference for regional planning and policy formulation related to population growth. Keywords: population growth; exponential model; differential equation; population projection; MAPE.   Abstrak: Pertumbuhan penduduk merupakan faktor penting dalam perencanaan pembangunan daerah karena memengaruhi kebutuhan layanan publik dan infrastruktur. Penelitian ini bertujuan memodelkan pertumbuhan penduduk Kabupaten Asahan menggunakan persamaan diferensial eksponensial serta mengevaluasi tingkat akurasi prediksinya. Penelitian menggunakan pendekatan kuantitatif deskriptif dengan data jumlah penduduk Kabupaten Asahan tahun 2021–2025 yang diperoleh dari Badan Pusat Statistik (BPS). Analisis dilakukan melalui pembentukan beberapa model pertumbuhan eksponensial dan pengujian akurasi menggunakan Mean Absolute Percentage Error (MAPE). Hasil penelitian menunjukkan bahwa Model Eksponensial IV merupakan model terbaik dengan nilai MAPE sebesar 0,2646%. Berdasarkan model tersebut, jumlah penduduk Kabupaten Asahan diproyeksikan meningkat dari 838.852 jiwa pada tahun 2026 menjadi 898.377 jiwa pada tahun 2030. Hasil penelitian menunjukkan bahwa model eksponensial memiliki tingkat akurasi yang sangat baik dan dapat digunakan untuk memproyeksikan pertumbuhan penduduk Kabupaten Asahan dalam jangka pendek.. Kata kunci: pertumbuhan penduduk; persamaan diferensial; model eksponensial; proyeksi penduduk; MAPE.
Co-Authors Hokkop Efendi Hasibuan Khofifa Romaito Siregar Lola Zeramenda Br Tarigan Muhammad Bayu Al Dhana Nurullita Astriani Sisca Sri Dewi Saragih