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Amin Otoni Harefa

Pendidikan Matematika, Universitas Nias

Author-ID : 275599

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STUDI MODEL PEMBELAJARAN PROBLEM SOLVING TERHADAP MOTIVASI BELAJAR MATEMATIKA Laoli, Arnius; Harefa, Amin Otoni
Jurnal Tunas Pendidikan Vol. 6 No. 1 (2023): JURNAL TUNAS PENDIDIKAN
Publisher : LPPM Universitas Muhammadiyah Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/pgsd.v6i1.1419

This research is based on a preliminary study conducted by researchers, found problems, namely (1) Mathematics is often considered a difficult subject to understand (2) Mathematics is a subject that is considered the most difficult, most boring and often considered the most difficult subject. scary and (3) the number of complaints from students about math lessons that are difficult, uninteresting and boring. study aims to describe the study of problem solving learning models on the motivation to learn mathematics whether or not it can improve mathematics learning outcomes. This type of research is library research (Library Research). Widiasworo, (2018:30) said "Library research methods are included in one type of research method based on the place of research. Based on the results of this study, the researcher suggests that in the learning process, the study of problem solving learning models should be used on the motivation to learn mathematics so that student learning outcomes can increase.

PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE GROUP INVESTIGATION TERHADAP HASIL BELAJAR SISWA DI SMK NEGERI 2 GUNUNGSITOLI Halawa, Polinus; Harefa, Amin otoni; Zega, Yulisman
Jurnal Tunas Pendidikan Vol. 6 No. 1 (2023): JURNAL TUNAS PENDIDIKAN
Publisher : LPPM Universitas Muhammadiyah Muara Bungo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/pgsd.v6i1.1435

Based on the results of initial observations in class X SMK Negeri 2 Gunungsitoli several problems were found, including: 1) Learning is still conventional (teacher centered), and 2) Student learning outcomes in mathematics are still lacking.Research objectives: (1) Describe the quality of learning mathematics through the application of the Group Investigation model. (2) Describe student learning outcomes in mathematics through the application of the Group Investigation Learning model. The research location is in class X SMK Negeri 2 Gunungsitoli. The research subjects were 26 students of class X, consisting of 12 boys and 14 girls. The research method used is Classroom Action Research (CAR), which consists of four stages: (1) Planning, (2) Action, (3) Observation, and (4) Reflection. Research instruments: (1) observation sheet, (2) learning quality questionnaire, (3) student learning achievement test, (4) interview guide sheet, and (5) photo documentation. The results of the study: (1) The quality of learning mathematics through the application of the Group Investigation learning model at X SMK Negeri 2 Gunungsitoli for the 2022/2023 academic year in Cycle I, namely 64.39%, was classified as sufficient criteria and in Cycle II, namely 98.53%, it was classified as very good criteria . (2) The average student learning outcomes in mathematics through the application of the Group Investigation learning model at X SMK Negeri 2 Gunungsitoli for the 2022/2023 academic year in Cycle I, namely 69.30, is classified as sufficient criteria and in Cycle II, namely 80.15, it is classified as criteria Good.

Penerapan Model Pembelajaran Discovery Learning untuk Meningkatkan Pemahaman Konsep Matematis Harefa, Melinia; Harefa, Amin Otoni; Zega, Yulisman
JOEAI (Journal of Education and Instruction) Vol. 6 No. 1 (2023): JOEAI (Journal of Education and Instruction)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/joeai.v6i1.6318

The purpose of this study was to improve students' understanding of mathematical concepts on the competence of rational and irrational inequalities through the application of the discovery learning model. The research method used is quantitative method with discovery learning approach, the subject of this research is X TKJ class students of SMK Negeri 1 Tuhemberua. This research took place in two cycles, namely cycle I consisting of 3 meetings and cycle II consisting of 3 meetings. Data collection techniques in this study were observation and objective tests. The instruments used were observation sheets and objective test questions. Based on the results of the study, it was found that the implementation of mathematics learning with the application of the discovery learning model can improve the understanding of mathematical concepts of class X TKJ students of SMK Negeri 1 Tuhemberua on the competence of rational and irrational inequality of one variable. This is based on data obtained through the results of cycle I tests and cycle II tests, the average percentage of students' understanding of mathematical concepts has increased by 15.67%, namely in cycle I of 66.28% and increased to 77.81% in cycle II. The conclusion in this study is that the average percentage of students' understanding of mathematical concepts has increased in cycle I and increased again in cycle II. Based on the qualification guidelines in the percentage table presented in the discussion section, it is classified in the high category. Keywords: discovery learning model, concept comprehension, high school mathematic

Co-Authors Agnes Rosdiana Telaumbanua Agustina Nazara Alfin Putra Idaman Mendrofa Aprieli Harefa Arnius Laoli Cakranegara, Pandu Adi Desta Magdalena Zebua Dewi Sani Zalukhu Famati Zebua Fanorama Gulo gea, Dewi puspita sari Gulo, Anugerah Setiawan Halawa, Fariyanto Halawa, Polinus HALAWA, YUFITA Harefa, Agnes Renostini Harefa, Melinia Harefa, Yarman Sia Hia, Ester Hia, Ika Kartika Hulu, Putrawan HULU, YOSANA Humendru, Ernita Ika Kartika Hia Juwinta, Indah Laoli, Arnius Laoli, Jaya Saputra Meiman Harapan Zega Mendofa, Juvita Sri Kasrina Mendrofa, Asri Selvi Putri Mendrofa, Ratna Natalia Mesra Belinda Zebua Mulyawan Safwandy Nugraha Nazara, Lilis Pretty Ndruru, Melida NETTI KARIANI MENDOFA Nur Ayu Zebua Polinus Halawa Restuman Zebua Rusmin Husain Sadiana Lase Safrinus Gulo Seli Intan Sari Zendrato Telaumbanua, Nobuala Telaumbanua, Ruti Faeri Telaumbanua, Yakin Niat Termin In Seysen Zalukhu Ul'Fah Hernaeny Waruwu, Nofati Wendiun Wendi Putra Hulu Winistina Giawa Wirdayanti Zebua Yulisman Zega Zalukhu, Anna Fertika Zebua, Amin Kristin Zebua, Diani Astuti Zebua, Famati Zebua, Martalenta Zebua, Niscayarida Kristin Zega, Desman Anugrah Zega, Esther Purnama Sari

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