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Nahor Murani Hutapea
Pendidikan Matematika FKIP Universitas Riau
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Development of problem-based learning materials on linear programming to facilitate students' mathematical problem-solving skills Situmorang, Ruth Sahana; Hutapea, Nahor Murani; Armis
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 1 (2024): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i1.2339

Abstract

This study aims to develop Problem-Based Learning (PBL) instructional tools, including a syllabus, lesson plans, and student activity sheets, to enhance students' mathematical problem-solving skills. The development process follows the 4-D model, consisting of four stages: Define, Design, Develop, and Disseminate. Data were collected through interviews, observations, and questionnaires, using validation sheets and student response surveys as instruments. The validity of the instructional tools was assessed by experts, with results indicating high validity, with average scores of 3.82 for the syllabus, 3.93 for the lesson plans, and 3.79 for the student activity sheets. Additionally, the practicality of the LAS was tested in both small and large groups, showing high practicality with average scores of 3.52 and 3.64, respectively. These findings indicate that the developed instructional tools meet the required standards of validity and practicality, making them suitable for classroom use. This study successfully created PBL-based instructional tools that effectively support the development of students' mathematical problem-solving skills and are expected to positively impact mathematics learning.
The development of problem-based learning worksheets to facilitate mathematical problem-solving skills in relation and function topics Yanti, Risma; Hutapea, Nahor Murani; Anggraini, Rini Dian
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 1 (2024): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i1.2480

Abstract

This research aims to develop student worksheets for eighth-grade mathematics, focusing on the topics of Relations and Functions, using a Problem-Based Learning approach. The development process followed the 4D model, which includes the stages of defining, designing, developing, and disseminating. The research instruments used were validation sheets and student questionnaires. After the preparation stage, the worksheets were evaluated by three validators and revised based on the feedback received. Data analysis showed an average validation score of 89.12%, indicating a very high level of validity. Subsequently, the validated worksheets were tested on a small group of students, resulting in a practicality score of 80.28%, which is classified as very practical. This research successfully produced valid and practical worksheets for eighth-grade mathematics, particularly in the topics of relations and functions.
Development of test instruments to measure mathematical problem-solving skills in quadrilaterals and triangles Norzilawati; Kartini; Hutapea, Nahor Murani
Jurnal Absis: Jurnal Pendidikan Matematika dan Matematika Vol. 7 No. 1 (2024): Jurnal Absis
Publisher : Program Studi Pendidikan Matematika Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/absis.v7i1.2481

Abstract

The purpose of this research is to produce a test instrument to measure mathematical problem solving abilities on quadrilaterals and triangles in class VII SMP/MTs students. The test developed is in the form of a description that meets the criteria for logical and empirical validity, level of difficulty and good discriminating power. This research uses a development studies development model which consists of pleminary and formative evaluation stages. The formative evaluation stage consists of self-evaluation, expert review, one-to-one, small group and field test activities. The research instruments used were validation sheets, student response questionnaires and KPMM test questions. The research subjects were 33 students of class VIII.3 of SMPN 8 Pekanbaru. Research data was obtained by validating the test instrument with three validators and testing the test instrument with research subjects at the small group and field test stages. The results of the research show that the average score of test instrument validators for content, construction and language aspects is 87.82%, from the 20 questions developed, 20 questions were logically valid, and 17 questions were empirically valid with a reliability value of 0.90 in the category very high, while the level of difficulty obtained was 13 questions with a medium level of difficulty, 2 questions with an easy level of difficulty and 1 question with a difficult level of difficulty, and the distinguishing power was 9 questions in the good category, 6 questions in the sufficient category, and 2 questions in the poor category . Of the 20 questions developed, there were 17 questions that met the criteria for being logically and empirically valid and had a good level of difficulty and differentiating power.
Development of Learning Media Assisted by iSpring Suite with Discovery Learning Model to Facilitate Mathematical Understanding Ability Ningrum, Rosilawati Kusuma; Suanto, Elfis; Hutapea, Nahor Murani
Journal of Educational Sciences Vol 8, No 3: July 2024
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jes.8.3.p.325-335

Abstract

The purpose of this research is to produce learning media that can facilitate students' mathematical understanding abilities on circle material assisted by iSpring Suite 10 software with a Discovery Learning model that can be accessed on Android smartphones and laptops and has met the valid and practical requirements. The development model used is the 4D model, with the stages of define, design, develop, and disseminate. The learning media was validated by three media experts, and the research subjects involved three students in one-on-one activities, six students in small group trials, and 30 students in large group trials. The research instruments included validation sheets and student response questionnaires. The results of validation by experts obtained an average of 90.6% with very valid criteria. Feedback and suggestions obtained from validation and one-to-one were used as improvement materials. Furthermore, small group and large group trials were carried out, each of which obtained an average of 91.87% and 91.58% with very practical criteria. This iSpring Suite 10 assisted learning medium with the Discovery Learning model on circle material to facilitate the mathematical understanding ability of junior high school students has met the valid and practical criteria.
Analisis Kemampuan Komunikasi Matematis Ditinjau dari Gaya Belajar Siswa pada Materi Persamaan Garis Lurus Andria, Adrila; Hutapea, Nahor Murani; Suanto, Elfis
Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika Vol 10 No 2 (2024): Jurnal Math Educator Nusantara
Publisher : Program Studi Pendidikan Matematika, Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmen.v10i2.22782

Abstract

Communication skills include the ability to express the understanding that has been obtained from learning by using mathematical language such as numbers, symbols, notations or graphs. Low category communication skills can be influenced by one of them by learning style. The purpose of this research is to analyze and describe the mathematical communication skills of students on straight line equation material when viewed from learning styles so that it can be known how the mathematical communication skills of students with visual, auditorial and kinesthetic learning styles. The method used in this research is descriptive qualitative. The research was conducted at SMPN 48 Pekanbaru with the research subjects of class VIII in the 2023/2024 school year. The data collection techniques used were tests and interviews. Tests to obtain data on students' mathematical communication skills and interviews to confirm students' answers. The results showed that visual learning style subjects obtained higher mathematical communication skills than auditorial and kinesthetic learning styles because they almost achieved all indicators of mathematical communication skills.
Analysis Of Mathematical Reasoning Ability in Terms of Mathematical Self-Efficacy of MAN 2 Pekanbaru Students Masrianti Fadillah; Maimunah, Maimunah; Hutapea, Nahor Murani
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 2 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i2.443

Abstract

The mathematical reasoning ability of each student is very important to be able to make them use reasoning in patterns and traits, and perform mathematical tricks to produce valid generalizations, proofs, and statements. The activity of generalizing, proving, and making valid statements requires self-confidence. Confidence is in the form of Self-Efficacy and becomes an internal factor related to mathematical reasoning abilities. describing mathematical reasoning abilities in terms of students' mathematical self-efficacy is the aim of this study using a descriptive qualitative approach. Data collection techniques were questionnaires to measure students' self-efficacy, written tests to measure students' mathematical reasoning abilities, and interviews. The research subjects were 30 students of class XII MAN 2 Pekanbaru. The results of the study found that: (1) 26.67% of students with high mathematical reasoning abilities were accompanied by high or moderate self-efficacy; (2) 56.67% of students with moderate mathematical reasoning abilities are accompanied by high, medium, or low self-efficacy; (3) 16.67% of students with low mathematical reasoning ability are accompanied by moderate or low self-efficacy; (4) 43.33% of students can perform calculations based on certain rules; (5) 76.67% of students can do direct proof; and (6) 75.83% of students can provide valid arguments. It can be concluded that the level of mathematical reasoning ability is not always on the same level as students' self-efficacy, but the best mathematical reasoning ability is always followed by good self-efficacy. So, students' self-efficacy needs to be increased to be able to apply better mathematical reasoning abilities.
Analysis of High School Students Mistakes in Completing The Topic Limit Function Type Higher Order Thinking Skill Sartika, Endang Sri; Maimunah, Maimunah; Hutapea, Nahor Murani
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 8 No. 3 (2023): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v8i3.449

Abstract

The ability to think higher order is one of the curriculum demands that can train students' ability to solve problems and improve their experience in doing HOTS questions.The purpose of this study was to analyze student mistake in solving HOTS-type limit function questions. This research is a qualitative descriptive study, and the subjects of this study consisted of 24 students in class XI consisting of students with high, medium, and low abilities at SMA N 2 Bangkinang Kota. Data collection techniques obtained from tests and documentationhe analysis technique carried out involves grouping students based on high, medium, and low abilities. Based on the results and discussion, this study shows that there are three types of student errors: comprehension errors, transformation errors, and skill errors. Factors of student error in solving HOTS questions In the function limit problem, students have not been able to absorb information well, they have not been able to understand the meaning of the questions given, and they are not careful and less thorough in the process.
Improving students’ mathematics learning outcomes at SMA IT Al-Fityah Pekanbaru through the application of the problem-based learning model Solihin, Deny; Solfitri, Titi; Hutapea, Nahor Murani
AXIOM : Jurnal Pendidikan dan Matematika Vol 13, No 1 (2024)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/axiom.v13i1.19135

Abstract

This research is a class action research that aims to improve the learning process and increase students' mathematics learning outcomes by applying the Problem-Based Learning model in a sequence topic. The subjects of this study were 22 students of class XI IPA SMA IT Al-Fityah Pekanbaru even semester of the 2022/2023 academic year with heterogeneous academic abilities. This study consisted of two cycles with each cycle consisting of four stages, namely planning, acting, observing, and reflecting. The results showed an increase in the mathematics learning outcomes of students in class XI IPA SMA IT Al-Fityah Pekanbaru after participating in learning using the Problem-Based Learning model. The increase in students' mathematics learning outcomes can be seen from the frequency of students who reached the Minimum Achievement Criteria (KKM) increased from cycles I and II respectively 63.63% (14 students) in daily test I to 72,72% (16 students) in daily test II. Thus it can be concluded that the Problem Based Learning model can improve the learning process and improve students' mathematics learning outcomes.
Pengembangan Modul Ajar Berbasis Problem Based Learning (PBL) Topik Relasi dan Fungsi untuk Meningkatkan Kecakapan Komunikasi Matematis Peserta Didik Fase D Amni, Rodhitul; Yuanita, Putri; Hutapea, Nahor Murani
Juring (Journal for Research in Mathematics Learning) Vol 7, No 4 (2024)
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/juring.v7i4.33526

Abstract

Kecakapan komunikasi matematis merupakan salah satu kecakapan yang sangat penting dimiliki peserta didik dalam pembelajaran matematika. Tujuan dilaksanakan penelitian yaitu untuk mengembangkan modul ajar berbasis Problem Based Learning (PBL) topik relasi dan fungsi untuk meningkatkan kecakapan komunikasi matematis peserta didik fase D yang valid, praktis dan efektif. Penelitian yang dilakukan menggunakan model pengembangan ADDIE (Analyze, Design, Development, Implementation and Evaluation). Penelitian dilakukan di MTs Al Muhajirin Tapung kelas VIII tahun ajaran 2024/2025. Teknik pengumpulan data yaitu, wawancara, observasi, angket dan tes. Instrumen dan analisis data yang digunakan yaitu: (1) validitas berupa modul ajar dan tes soal; (2) analisis praktikalitas berupa angket respon peserta didik dan guru serta lembar pengamatan; (3) efektivitas berupa perbedaan rata-rata N-Gain skor postest kelas eksperimen dan kelas kontrol. Hasil validasi modul ajar yang dikembangkan menunjukkan kategori sangat valid dengan persentase 94,75%. Praktikalitas modul ajar ujicoba kelompok kecil berkategori praktis dengan persentase 78,93%. Keefektifan memperlihatkan perbedaan rata-rata peningkatan yang signifikan dengan nilai sig. (2 tailed) sebesar 0,017 dalam kecakapan komunikasi matematis peserta didik topik relasi dan fungsi pada fase D pada kedua kelas sampel dengan menggunakan uji t. Penelitian ini menambah referensi dan wawasan untuk penggunaan modul ajar berbasis PBL topik relasi dan fungsi serta dapat dijadikan rekomendasi untuk penelitian selanjutnya.
Boosting Students' Mathematical Problem-Solving Skills with PBL-Based LiveWorksheets: Focus on Whole Numbers and Fractions Topic Usqo, Urwatil; Hutapea, Nahor Murani; Kartini, Kartini
Edumatika Vol 7 No 2 (2024): November 2024, Edumatika : Jurnal Riset Pendidikan Matematika
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan IAIN Kerinci

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32939/ejrpm.v7i2.3933

Abstract

Problem solving skills is one of the important skills that students must master through learning mathematics. One alternative to improve students' mathematical problem-solving skills is using the Problem-based Learning (PBL) learning model combined with technology-based learning media. This research aims to produce PBL-based electronic student worksheets (e-worksheets) on the topic of whole numbers and fractions that are valid, practical and effective to improve students' mathematical problem-solving skills. The development of e-worksheets uses a 4D development model involving seventh-grade students from one of the junior high schools in Rokan Hulu, Riau, Indonesia as field test subjects. The results of data analysis show that the e-worksheet developed using LiveWorksheet application has met the valid criteria based on experts judgement and practical based on the practicality questionnaires. E-worksheets have also been proven effective in improving students' mathematical problem-solving skills with an average N-gain at high criteria.
Co-Authors ', Armis ', Zuhri D ', Zulkarnain Afriza, Yosep Yendra Aisyah Amalina Aisyah Nurul Rahmah Aminuyati Amni, Rodhitul Andria, Adrila Anggi Apriani, Marina Arifatul hilma Arifin, Annisa Armis ' Armis Armis Aruan, Renni Dermawan Asri Lubis Atma Murni Atma Murni Atma Murni Atma Murni Atma Murni Brilyan Amry Siregar Cesilia, Sindy Chindy Julia Fitrah Chintya, Cici Ayu Cici Ayu Chintya Darsono Simbolon Dede Sumiati Della Widya Ananda Desi Fitriyani Dewi Yuliani, Dewi Dewi, Widya Shintya Dian, Monika Putri Didik Kharis Prayudi Dwi Wirda Lastari Ekarikardo ' Elfis Suanto Eti Tantri Manurung Evi Zahara Evi Zahara, Evi Zahara Fadilah Gustin Khainingsih Fadillah, Masrianti Fahrani, Ibnah Wanda Fatma Kumala Fatma Nauli Butar-Butar Frengki Candra Gunawan Silalahi Giva Putri, Meini Guswinda, Guswinda H. Zulkarnain H. Zulkarnain Harianti, Putri Harini, Elsa Hartina, Dwi Putri Hastri, Sherly Indah Mulya Cahyani Indira Santi Irwandi, Bayu Jalinus Jalinus Jalinus, Jalinus Jalinus, Jalinus KARTINI Kartini Kartini Kartini, Kartini Khairani Khairani Lendrawati Arif Lestari, Diah Dwi Maimunah Maimunah Maimunah Maimunah, Maimunah Manurung, Julian Lois Maria Celes Rajagukguk Mariani Mariani Marlinda, Weni Marni Swasti Marni Swasti Martha Febriani Br Sitinjak Masrianti Fadillah Mayu, Tika Ulfa Mega Afrianti Mega Ayu Adila Meta Sartika Nasution, Fitri Rahmayani Niki Lauda S Lauda, Niki Lauda S Ningrum, Rosilawati Kusuma Ningsih, Irma Fetria Nofita Damayanti Norzilawati Nur’azani, Alifya Ovemy Delfita Pakpahan, Gunawan Saputra Parsaoran Selpanri Sitorus Pattimura SC Putri Aulia Susanti Putri Yuanita Rahayu, Dinda Rahmatina Aulia RAHMI FITRIA Rahmi Fitria Raju, Riani Octavianty Ramadhan, Puteri Nurul Ranti Octapiana Simanjuntak Ratna Sari Dewi Reny Reski Reny Reski Reny Riani Octavianty Raju Rini Dian Anggraini Rio Kurniawan Riza Derniati Rohiimah, Siti Sakur Sakur Sakur, Sakur Sandy, Aulia Saratul Ihsany Ihsany, Saratul Ihsany Sartika, Endang Sri Sehatta Saragih Sehatta Saragih Sehatta Saragih Saragih, Sehatta Saragih Sehatta Saragih Sehatta Saragih Sembiring, Rinawati Septya Dwi Putri Dwi Putri Simarmata, Evan Dari Kristianto Situmorang, Ruth Sahana Solihin, Deny Solly Aryza Sonya Claudy Emellya Putri Suhermi ' Supri Hartini Susanti, Putri Aulia Susda Heleni Susi Ermina Sipakkar, Susi Ermina Syaila Affani Syarifah Nur Siregar Syef Harapit Syofni Syofni Syofni Syofni Syofni Syofni, Syofni Titi Solfitri Usqo, Urwatil Uswatun Khasanah Wulan dari Yanti, Risma Yenita Roza Yodiatmana, Yodiatmana Yohana S Sinaga, Yohana S Yola Putri Anggraini Yulistiawati, Yulistiawati Yuni Kartika, Yuni Zameza, Ranty Andika Abinaya Zima Ratna Sari Zulkarnain ' Zulkarnain Zulkarnain Zulkarnain Zulkarnain