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All Journal Paradikma: Jurnal Pendidikan Matematika Al Khawarizmi: Jurnal Pendidikan dan Pembelajaran Matematika SIGMA: Jurnal Pendidikan Matematika JIPM (Jurnal Ilmiah Pendidikan Matematika) Jurnal Cendekia : Jurnal Pendidikan Matematika Prima: Jurnal Pendidikan Matematika Jurnal Pendidikan Matematika (Jupitek) Jurnal Perspektif M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika JURNAL MANAJEMEN PENDIDIKAN Journal of Mathematics Education and Science Humantech : Jurnal Ilmiah Multidisiplin Indonesia Journal of Education Research MATHunesa: Jurnal Ilmiah Matematika Jurnal MathEducation Nusantara Journal Research of Social Science, Economics, and Management Innovative: Journal Of Social Science Research International Journal of Trends in Mathematics Education Research (IJTMER)
Sitompul, Pardomuan
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The Influence of Mathematical Literacy Ability and Critical Thinking Ability on Mathematical Problem Solving Ability Adlina, Almas; Syahputra, Edy; Sitompul, Pardomuan
PARADIKMA: JURNAL PENDIDIKAN MATEMATIKA Vol. 17 No. 1 (2024): PARADIKMA JURNAL PENDIDIKAN MATEMATIKA (January-June 2024)
Publisher : Study Program of Mathematics Education of Unimed Postgraduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/paradikma.v17i1.56268

Abstract

The aims of this research are: (1) To find out how mathematical literacy skills and critical thinking skills affect mathematical problem solving abilities simultaneously, (2) to find out how mathematical literacy skills and critical thinking skills affect mathematical problem solving abilities. part. This study used a quantitative research approach. This research was carried out at SMPS Bina Taruna Medan, SMPN 20 Medan and SMPN 33 Medan. The subjects of this research were students in class VII-1 in three schools totaling 90 students. The sampling method in this study was a random sampling technique. The instruments used consisted of: (1) a test of mathematical literacy skills, (2) a test of critical thinking skills, (3) a test of mathematical problem solving abilities. Data analysis was performed using multiple linear regression analysis. The results of the research show: (1) There is an influence of mathematical literacy skills and critical thinking skills on mathematical problem solving abilities simultaneously, (2) There is an influence of mathematical literacy skills and critical thinking skills on mathematical problem solving abilities. partial capability. (3) mathematical literacy skills and critical thinking skills have an influence of 90.1% on simultaneous mathematical problem solving abilities, while 9.9% is determined by other variables.
Diagnosis of Difficulties Faced by Students of Mathematics Education Program at IAIN Lhokseumawe In Understanding Indefinite Integral Lisa, Lisa; Amin Fauzi, Kms. Muhammad; Sitompul, Pardomuan
Al-Khawarizmi Vol 8 No 1 (2024): 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.v8i1.22890

Abstract

Understanding the concepts and solving problems in the integral calculus course is the problem most often faced by students during the learning process. Therefore, an analysis must be made of the types of learning difficulties faced by students in integral calculus courses, especially indeterminate integrals. The purpose of this research is to identify what problems students face when solving indeterminate integral problems in integral calculus courses. The results are expected to provide an overview of the types of learning challenges faced by students while studying. The type of research used iscase study research with a qualitative approach. The research subjects were 20 students from the second semester of unit 1 of IAIN Lhokseumawe's Tadris Mathematics study programme. The results showed that there were three learning difficulties faced by students, namely Type I (Rigour), Type II (Concept Understanding) and Type III (Calculation Process).
The Development Of Mathematics Learning Media Based On Mobile Learning Through Smart Apps Creator To Improve Mathematical Problem Solving Skills Nababan, Ginanty; Sitompul, Pardomuan
JURNAL MANAJEMEN PENDIDIKAN Vol 13, No 2 (2025): Jurnal Manajemen Pendidikan
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jmp.v13i2.12881

Abstract

In the contemporary education system, integrating technology is paramount in fostering student's problem-solving abilities. This research focuses on developing learning media that ensures validity, practicality, and effectiveness based on mobile learning through Smart Apps Creator to improve mathematical problem-solving skills. The research follows a Research and Development (RD) approach, employing the ADDIE model for its development. The study involved 30 students in tenth grade from SMA Dharma Pancasila Medan. The research results obtained include the average percentage validation by the media expert 85.17% and the material expert 87%, which are highly valid criteria. The percentage of practicality used with an average rate of teacher response questionnaire is 97.89%, and the student response questionnaire is 84.81%. Learning media developed using Smart Apps Creator (SAC) effectively improves problem-solving skills, as shown by the classical student learning completeness reaching 90% with effective criteria. The increase in problem-solving skills was an increase in the medium category, with an average N-gain score of 0.68. As a result, this study shows that creating learning media based on mobile learning through Smart Apps Creator is an effective educational tool that significantly improves student problem-solving skills.
MARKOV CHAIN K-MEANS CLUSTER MODEL DALAM DINAMIKA TRANSISI TINGKAT KEMISKINAN BERDASARKAN INDEKS KEDALAMAN DAN KEPARAHAN KEMISKINAN DI PROVINSI SUMATERA UTARA Siregar, Desto Wardana; Sitompul, Pardomuan
MATHunesa: Jurnal Ilmiah Matematika Vol. 13 No. 3 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/mathunesa.v13n3.p562-577

Abstract

Kemiskinan merupakan masalah multidimensi yang kompleks dan memerlukan pendekatan analitis untuk memahami dinamikanya.Penelitian ini bertujuan untuk menganalisis dinamika transisi tingkat kemiskinan di Provinsi Sumatera Utara yang diukur berdasarkan Indeks Kedalaman Kemiskinan (Poverty Gap Index-P1) dan Indeks Keparahan Kemiskinan (Poverty Severity Index-P2) menggunakan Markov Chain K-Means Cluster Model. Data yang digunakan adalah data sekunder dari Badan Pusat Statistik Sumatera Utara tahun 2023-2024. Penelitian ini diuraikan ke dalam dua bagian utama yakni K-Means Clustering untuk segmentasi kabupaten/kota berdasarkan tingkat kemiskinan, dan analisis Markov Chain untuk memodelkan transisi antar cluster kemiskinan. Hasil klasterisasi menunjukkan bahwa data terbagi menjadi tiga cluster optimal: Cluster 1 dengan centroid (0,02251, 0,00561) pada tahun 2023 dan (0,01885, 0,0037) pada tahun 2024, Cluster 2 dengan centroid (0,01384, 0,003263) pada tahun 2023 dan (0,01225, 0,00275) pada tahun 2024, dan Cluster 3 dengan centroid (0,00833, 0,001593) pada tahun 2023 dan (0,007778, 0,001328) pada tahun 2024. Analisis Markov Chain menghasilkan matriks peluang transisi yang memenuhi sifat ergodic (irreducible, aperiodic dan positive recurrent) dengan kondisi steady state dicapai pada periode ke-18 dimana dalam model ini ditemukan bahwa pada tahun 2041, Provinsi Sumatera Utara diproyeksikan sepenuhnya terbebas dari cluster kemiskinan tinggi (ekstrem) dengan probabilitas sebesar 76,69%.
The Effect of Mathematical Connection and Critical Thinking Skills on Mathematical Problem Solving Skills of Vocational School Students Johanna Purba, Merry; Gorky Sembiring, Maximus; Sitompul, Pardomuan
Journal Research of Social Science, Economics, and Management Vol. 5 No. 6 (2026): Journal Research of Social Science, Economics, and Management
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jrssem.v5i6.1299

Abstract

Mathematical problem-solving skills are an essential competency for vocational school students because they relate to the demands of the world of work that require analysis, reasoning, and proper decision-making. However, the results of observations show that students' problem-solving skills are still low, so a study of the factors that affect them is needed. This study aims to analyze the influence of mathematical connection skills and critical thinking skills on the mathematical problem-solving ability of vocational school students. The study uses a quantitative approach with a correlational ex-post facto type. The research sample amounted to 93 grade XI students of SMK Negeri 1 Doloksanggul who were selected through purposive sampling techniques. The research instruments include mathematical connection tests, critical thinking tests, and problem-solving tests that have been validated and declared reliable. The data were analyzed through simple regression tests and multiple linear regression. The results of the study showed that there was a positive and significant influence of mathematical connection ability on problem-solving ability; there is a positive and significant influence of critical thinking skills on problem-solving skills; and these two variables simultaneously have a significant effect on problem-solving ability. The greatest contribution comes from the ability to think critically. These findings confirm the importance of strengthening mathematical connections and critical thinking in mathematics learning in vocational schools.
Co-Authors Adlina, Almas Al Karim, Dini Safitri Amin Fauzi, Amin Amin Fauzi, Kms. Muhammad Asmin Asmin, Asmin Bornok Sinaga E Elvis Napitupulu E. Elvis Napitupulu, E. Elvis Edy Syahputra Fadilah, Nina Fauzi, KMS Muhammad Amin Fauzi, Muhammad Amin Gorky Sembiring, Maximus Hasratuddin Hasratuddin Indah, Nurliyah Johanna Purba, Merry Lisa Lisa Lisa Lisa, Lisa Lumban Toruan, Sischa Monika Maisyaroh Nababan, Ginanty Pargaulan Siagian Purba, Putri Anggraini Rahmi Ramadhani Rusmini Rusmini Sembiring, Ribka Kariani Sibarani, Sari Ayu Silitonga, Rustani Simanjuntak, Sinta Dameria Siregar, Desto Wardana Siregar, Muhammad Fadhil Hidayat Siregar, Zul Fahmi Sitanggang, Boy Fransiskus Sitompul, Octaviani Tambunan, Lois Tampubolon, Teodora Tania Tanjung, Roriadi Putra Waminton Rajagukguk