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All Journal International Journal of Informatics and Communication Technology (IJ-ICT) International Journal of Evaluation and Research in Education (IJERE) Jurnal Sains dan Teknologi Journal of Education and Learning (EduLearn) AKSIOMA: Jurnal Program Studi Pendidikan Matematika Mimbar Sekolah Dasar Jurnal Elemen Edumatsains Jurnal Dinamika Pendidikan Tadbir : Jurnal Studi Manajemen Pendidikan JTAM (Jurnal Teori dan Aplikasi Matematika) Beta: Jurnal Tadris Matematika Journal of Educational Research and Evaluation Journal of Education Technology Jurnal Kreativitas PKM Journal of Education and Learning Mathematics Research (JELMaR) UTAMAX : Journal of Ultimate Research and Trends in Education Jurnal Pedagogi dan Pembelajaran International Journal of Business, Law, and Education SAINSMAT: Journal of Applied Sciences, Mathematics, and Its Education Indonesian Community Journal Al-Hijr: Journal of Adulearn World Asian Journal of Educational Technology Brillo Journal Jurnal Penelitian Pendidikan Indonesia Jurnal Pendidikan Progresif
Lumbantoruan, Jitu Halomoan
Universitas Kristen Indonesia
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Journal : Brillo Journal

 1 
Faktor Procrastination Penyebab Mahasiswa Terlambat Menyelesaikan Tugas Akhir di Program Studi Pendidikan Matematika Daniel Jeremy; Stevi Natalia; Jitu Halomoan Lumbantoruan
Brillo Journal Vol 1 No 1 (2021): Implementasi Model Pembelajaran terhadap Kemampuan Matematis Siswa
Publisher : S&Co Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (504.814 KB) | DOI: 10.56773/bj.v1i1.5

Abstract

This study uses a form of analysis with a qualitative descriptive technique. This study involved final year students who were late in completing their thesis. This research was conducted online due to the COVID-19 outbreak. In this study, researchers used accidental sampling technique. Accidental sampling is a sampling technique based on chance. Methods of data collection using the questionnaire method. The results showed that students in working on the thesis encountered many obstacles in internal factors, namely self-control, self-efficacy, and motivation.
Kemampuan Berpikir Kritis Matematis Siswa: Studi dengan Model Probing-Prompting dan Konvensional Ninda Kristin; Candra Ditasona; Jitu Halomoan Lumbantoruan
Brillo Journal Vol 1 No 1 (2021): Implementasi Model Pembelajaran terhadap Kemampuan Matematis Siswa
Publisher : S&Co Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (297.583 KB) | DOI: 10.56773/bj.v1i1.7

Abstract

This study aims to determine how students critical thinking ability who study with probing-prompting and conventional learning models are. This research is a quantitatif research with a quasi-experimental design group. The research population was all students of class X SMK Setih Setio 2 Muara Bungo, Jambi. The research sample consisted of two classes with a sample size of 62 people determined by simple random sampling, namely X MM as the control class using the conventional learning model and X AK as the experimental class using the Probing-Prompting learning model. Requirements analysis test has been carried out so that the data obtained are not normally distributed and not homogeneous. The hypotheses were analyzed using the U-Mann Whitney test at a significant level of α=0,05. Based on data analysis and hypothesis testing, it was found that: (1) there were differences in students' critical thinking skills taught using probing-prompting and conventional learning models, and (2) there is an increase in students' critical thinking skills taught by using probing-prompting and conventional models.
Kesulitan Siswa dalam Memecahkan Masalah Barisan dan Deret Aritmatika Ayu Marida Silaban; Kerdid Simbolon; Jitu Halomoan Lumbantoruan
Brillo Journal Vol 1 No 2 (2022): Profil Kemampuan Pemecahan Masalah Matematis Siswa
Publisher : S&Co Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.713 KB) | DOI: 10.56773/bj.v1i2.14

Abstract

The purpose of this research is to analyze students' difficulties in problem-solving in arithmetic sequences and series. The subject of this research is a student at SMA HKBP Lintongnihuta. This research approach is descriptive quantitatively. The types of students' difficulties experienced were analyzed based on Polya's stages of problem-solving. The results of this research are three categories of students based on achievement scores, namely the low category with a percentage of 50%, the medium category with a percentage of 30%, and the high category with a percentage of 20%. There are 4 types of difficulties experienced by students, that is: (1) difficulty in understanding the problem with the number of students experiencing it as much as 28%, (2) students' difficulties in planning problem solving with the number of students experiencing it as much as 11%, (3) students' difficulties in carrying out the plan in problem-solving with the number of students experiencing it as much as 12%, and (4) difficulty in looking back at answers with the number of students experiencing it as much as 8%. The type of difficulty that most students experience is in understanding the problem.
Co-Authors Abda Abda Achmad Syarifudin, Achmad Adisti Ratna Puri Andi Dian Sartika Andi Nurfaizah Aniati Aniati Aniati Aniati Anisah Arifin, Syaadiah Asdar Ahmad Ayu Marida Silaban Bernadetha Nadeak Bradley Mahyar Budi Mardikawati Candra Ditasona Candra Ditasona Dane, Gerneke Daniel Jeremy Ditasona, Candra Edison Siregar Evi Deliviana Evi Syafrida Nasution Familia Novita Simanjuntak Faradiba F Gerneke Dane Hajati, Erna Noer Hendrikus Male Hendrikus Male Hendrikus Male, Hendrikus Henny Sanulita HOTMAULINA SIHOTANG Ika Rahayu Satyaninrum irsyad, irsyad Iwan Ramadhan Jefri Setyawan Jeranah Judijanto, Loso Kerdid Simbolon Laras Nadiananda Iswari Latuny, Leny S. Limbong , Mesta Lokollo, Lambertus J. Loso Judijanto Mahyar, Bradley Melda Rumia Rosmery Simorangkir Mesta Limbong Muhammad Ichsan Abda Nelius Harefa Ninda Kristin Novitasari, Dewiana Nurfaizah, Andi Nuril Huda Pikir Wisnu Wijayanto Pramono, Tias Risma Uly Risma Uly Manalu, Risma Uly Rudolf Kempa, Rudolf Ruth Yuni Kartika Samsudin Siahaan, Chontina Sifra Rebeka Waruwu Simorangkir, Yosua Novembrianto Stevi Natalia Sunengsih Simatupang Supriyadi, Tugimin Susanto, Ratnawati Syaadiah Arifin Tatang Herman, Tatang Taufiqulloh Dahlan Uly, Risma Yance Manoppo