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All Journal JURNAL KESEHATAN LINGKUNGAN: Jurnal dan Aplikasi Teknik Kesehatan Lingkungan EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA JURNAL PENDIDIKAN TAMBUSAI MAJU : Jurnal Ilmiah Pendidikan Matematika Pena Justisia: Media Komunikasi dan Kajian Hukum MES: Journal of Mathematics Education and Science JURNAL PEMBELAJARAN DAN MATEMATIKA SIGMA (JPMS) Mosharafa: Jurnal Pendidikan Matematika
Syahlan, Syahlan
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Agriculture, Biological Sciences & Forestry Education Law, Crime, Criminology & Criminal Justice Mathematics Public Health Social Sciences Other

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Improving Students’ Ability in Writing Recount Text Through the Use of Mystery Envelope in Grade Eight Parhusip, Sri Rebeka Juli Anastia; Hasibuan, Derliana; Manik, Monika; Napitupulu, Samsul; Syahlan, Syahlan
Jurnal Pendidikan Tambusai Vol. 9 No. 2 (2025): Agustus
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jptam.v9i2.30080

Abstract

Penelitian tindakan kelas ini bertujuan untuk meningkatkan kemampuan siswa dalam menulis teks recount menggunakan media Amplop Misteri. Subjek penelitian ini adalah 30 siswa kelas delapan kelas VIII-2 di UPTD SMPN 6 Kisaran. Penelitian ini dilakukan dalam dua siklus selama empat pertemuan. Awalnya, siswa menghadapi kesulitan dalam menghasilkan ide dan mengaturnya secara koheren. Setelah menerapkan strategi Amplop Misteri, kemampuan menulis mereka meningkat. Siswa menerima tugas berbasis amplop yang dirancang untuk membimbing mereka dalam menyusun teks recount melalui kegiatan yang menarik dan terstruktur. Skor rata-rata meningkat dari 66,1 pada Tes I menjadi 72,1 pada Tes II, dan 82 pada Tes III. Selain itu, persentase siswa yang mendapat skor ≥75 naik dari 13,3% menjadi 93,3%. Data kuantitatif dan kualitatif menunjukkan bahwa Amplop Misteri secara efektif meningkatkan keterampilan menulis recount dan keterlibatan siswa di kelas.
ANALISIS KEMAMPUAN COMPUTATIONAL THINKING MAHASISWA CALON GURU MATEMATIKA PADA PROGRAM PROFESI PENDIDIKAN GURU kinanti, anggi anatasia; Syahlan, Syahlan; Siregar, Rosliana
MES: Journal of Mathematics Education and Science Vol 10, No 2 (2025): Edisi April
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i2.11758

Abstract

This study aims to analyze the Computational Thinking (CT) abilities of prospective mathematics teacher students enrolled in the Teacher Professional Education Program at Universitas Islam Sumatera Utara. Using a descriptive quantitative approach, CT abilities were examined based on four main indicators: decomposition, pattern recognition, abstraction, and algorithmic thinking. Data were collected through contextual open-ended tests, perception questionnaires, and limited interviews involving 24 PPG students. The results showed that, in general, students' CT abilities fell into the moderate category, with the highest achievement in pattern recognition and the lowest in abstraction. Most students had never received explicit instruction in CT, yet acknowledged that this approach helped them solve mathematical problems more systematically. These findings highlight the importance of explicitly integrating CT skills into mathematics education curricula through problem-based and digital literacy-oriented learning approaches. The study recommends strengthening instructional strategies to develop students’ systematic and logical thinking abilities as future mathematics educators.
Empowering Primary School Students Through Problem-Based Learning: A Path to Literacy and Numeracy Mastery Siregar, Rosliana; Siagian, Muhammad Daut; Syahlan, Syahlan
Mosharafa: Jurnal Pendidikan Matematika Vol. 13 No. 4 (2024): October
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v13i4.2550

Abstract

Abstrak Keterampilan literasi dan numerasi sangat penting untuk mencapai potensi penuh dalam menjalani kehidupan yang bermakna dan produktif. Penelitian ini bertujuan mengkaji efektivitas Problem-Based Learning (PBL) dalam meningkatkan literasi dan numerasi siswa sekolah dasar di Kota Medan. Menggunakan desain quasi-eksperimen, sampel terdiri dari 37 siswa kelompok eksperimen (PBL) dan 35 siswa kelompok kontrol (konvensional). Data dikumpulkan melalui tes prior knowledge (PK), literasi, dan numerasi, dianalisis dengan ANOVA dua jalur. Hasil menunjukkan bahwa kelompok eksperimen mengalami peningkatan signifikan, dengan N-Gain literasi (0.449) dan numerasi (0.439) lebih tinggi dibanding kelompok kontrol (0.268 dan 0.236). Selain itu, PK berpengaruh signifikan terhadap numerasi, tetapi tidak terhadap literasi. Penelitian ini merekomendasikan integrasi PBL dalam kurikulum untuk meningkatkan keterampilan siswa serta penelitian lanjutan terkait motivasi dan konteks sosial-budaya. PBL terbukti sebagai pendekatan inovatif yang relevan bagi peningkatan kualitas pendidikan di Indonesia. Abstract Literacy and numeracy skills are essential for individuals to reach their full potential, lead meaningful and productive lives, and participate fully in society. This study aims to examine the effectiveness of Problem-Based Learning (PBL) in enhancing the literacy and numeracy skills of primary school students in Medan, Indonesia. Employing a quasi-experimental design, the study involved 37 students in the experimental group (PBL) and 35 students in the control group (conventional learning). Data were collected through prior knowledge (PK) tests, as well as literacy and numeracy assessments, and analyzed using two-way ANOVA. The results revealed that the experimental group showed significantly greater improvement, with N-Gain scores for literacy (0.449) and numeracy (0.439) exceeding those of the control group (0.268 and 0.236, respectively). Additionally, prior knowledge had a significant effect on numeracy outcomes, but not on literacy. The study recommends integrating PBL into the curriculum to enhance student skills and encourages further research on motivational and sociocultural factors. PBL is demonstrated to be an innovative and relevant approach for improving the quality of education in Indonesia.
PENGEMBANGAN E-MODUL BERBASIS DISCOVERY LEARNING MENGGUNAKAN SOFTWARE EXE-LEARNING PADA MATERI FUNGSI KELAS X SMA Haloho, Elysha Jefirayani; Azis, Zainal; Afnaria, Afnaria; Syahlan, Syahlan
MES: Journal of Mathematics Education and Science Vol 9, No 2 (2024): Edisi April
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v9i2.9755

Abstract

The rapid development of science and technology encourages renewal efforts in the utilization of various technological results in the learning process, such as utilizing digital-based learning media. This research aims to produce e-module learning tools based on discovery learning on quadratic function material for class X SMA students that are valid, practical, and effective. The research method used is Research and Development with Thiagarajan 4-D development model: define, design, develop, and disseminate. The subject of this research is the production of e-modules based on the discovery learning model. The object of this research is the students of SMA Negeri 1 Purba, totaling 33 students. The instruments used in this study were validation questionnaires and student responses to the e-modules developed as well as student learning outcomes tests. The results of this study indicate that the e-Module developed has met the requirements of validity and practicality as stated in the results of the questionnaire given. In addition, the e-module developed was also declared effective based on the student learning outcomes test with an average of 78,79% and included in the good category.
ANALISIS KEMAMPUAN BERPIKIR KOMPUTASI MAHASISWA DALAM PEMBUKTIAN INDUKSI MATEMATIKA Syahlan, Syahlan; Siregar, Rosliana; Malay, Irval
MES: Journal of Mathematics Education and Science Vol 9, No 1 (2023): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v9i1.8738

Abstract

The increasingly rapid development of technology and information has enabled transformation in the fields of education and teaching. This is clearly seen in the current curriculum expectations, where one of the expected learning outcomes from elementary school to middle school is that students are expected to have computational thinking skills. For this reason, the aim of this research is to look at students' abilities related to their computational thinking abilities. in solving the problems given. The results of the answers given by students are then analyzed according to the four foundations of computational thinking. This research is descriptive research with a qualitative approach. This research was carried out in the Mathematics Education study program, Universitas Islam Sumatera Utara in the Number Theory course. The sample used was 12 students taking Number Theory courses. The instrument used is a description of 2 questions which are given during the learning process on mathematical induction material. The students' answer sheets were then analyzed to get a picture of students' computational thinking abilities based on the four foundations. The results of this research show that students' computational thinking abilities still need to be improved, such as decomposition abilities which are 41.67% and abstraction abilities which are 58.33%. Overall, students' computational thinking abilities are still in the sufficient ability category.
Implementation of Criminal Actions in Cases of Sexual Harassment of Children Syahlan, Syahlan; Margono, Margono
Pena Justisia: Media Komunikasi dan Kajian Hukum Vol. 21 No. 2 (2022): Pena Justisia
Publisher : Faculty of Law, Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31941/pj.v21i2.2677

Abstract

A criminal act is an act that is not in line with the law, is committed because of someone's fault, and is considered an act against the law. Criminal acts that are currently rife are criminal acts due to cases of sexual violence against children. Basically children are a nation's asset that must be given a good understanding for their growth and development instead of being damaged by problems of sexual violence. Every perpetrator of sexual violence that occurs to children is subject to criminal punishment that has been regulated in several laws in Indonesia. However, the main problem is that the appropriate punishment for the behavior is not yet optimal. It is felt that protection for victims has not been carried out optimally.Keyword: Crime, Law, Sexual violence, Children, Protection
Co-Authors Afnaria, Afnaria Aprillia, Ulfa Dwi Azis, Zainal Dalimunthe, Shella Irmeliani Ely Syafitri, Ely Haloho, Elysha Jefirayani Hasibuan, Derliana Hasratuddin Hasratuddin Kinanti, Anggi Anatasia Kusmiran, Ade Lubis, Syahidatul Nadila Malay, Irval Manik, Monika Margono Margono Muhammad Daut Siagian Muniroh, Leny Musri S., M. Ali Napitupulu, Samsul Octariani, Dhia Parhusip, Sri Rebeka Juli Anastia Siahaan, Bunga Yolandita Siregar, Rosliana Srg, Putri Seika Sumiati Sumiati Wati, Isma