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Dian Armanto

Universitas Negeri Medan

Author-ID : 2786856

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PENGARUH MODEL PEMBELAJARAN KOOPERATIF TIPE NUMBERED HEAD TOGETHER TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS VII Nupus, Nurhayatun; Armanto, Dian
MES: Journal of Mathematics Education and Science Vol 10, No 1 (2024): Edisi Oktober
Publisher : Universitas Islam Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/mes.v10i1.9839

This study aims to determine the effect of the Numbered Head Together learning model on grade VII mathematics learning outcomes as well as the difficulties or weaknesses of students learning by using the Numbered Head Together learning model. This research is quantitative research with experimental research type, the research used pretest-posttest control group design. In this study the population was all class VII students of SMP Negeri 5 Percut Sei Tuan and the sample used consisted of two classes namely VII-6 (experimental class) and class VII-7 (control class). The sampling technique used simple random sampling. Based on the results of the pretest data, the average value of the experimental class was 29.59 and the control class was 31.5. While the posttest results obtained an average experimental value of 77.40 and a control class of 71.34. Based on the results of hypothesis testing using the t-test, it is concluded that there is a significant effect of the Numbered Head Together learning model on the learning outcomes of seventh grade mathematics students at SMP Negeri 5 Percut Sei Tuan. The Numbered Head Together model can reduce students difficulties in understanding and solving linear equations of one variable and increase students’ active participation in learning.

MODEL PEMBELAJARAN PROBLEM BASED LEARNING DALAM PEMBELAJARAN MATEMATIKA Hasibuan, Eka Khairani; Armanto, Dian; Amry, Zul
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 5 No. 3 (2024): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v5i3.806

This research examines the effectiveness of Problem-Based Learning (PBL) in mathematics education through a systematic analysis of 27 research journals. The study focuses on the implementation of PBL in enhancing critical thinking abilities, problem-solving skills, mathematical literacy, as well as student motivation and learning outcomes. Meta-analysis results indicate that PBL has significant positive effects on critical thinking abilities in mathematics learning (g=0.769) and science (g=1.122). Comparative studies suggest that PBL is more effective than conventional learning in improving critical thinking skills and learning motivation. Several classroom action research studies report improvements in learning mastery and student mathematics achievement following PBL implementation. However, PBL implementation also faces challenges such as student passivity, teacher readiness, time management, and difficulties in achieving Higher Order Thinking Skills (HOTS) indicators. The development of PBL-based learning tools and interactive media shows promising results in enhancing learning effectiveness. This research concludes that PBL is an effective approach for developing higher-order thinking skills and conceptual understanding in mathematics, although its success depends on teacher readiness and adequate learning system support.

Development of Interactive Learning Media Assisted by Desmos Based on RME to Improve Mathematical Representation Abilities and Resilience of Class VIII Students at SMPN 1 Idi Astuti, Astuti; Armanto, Dian; Hasratuddin, Hasratuddin
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 9 No. 2 (2024): Mathline: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v9i2.639

The purpose of this study to describe: 1) the validity, practicality and effectiveness of the interactive learning media assisted by RME-based Desmos which was developed to increase students' mathematical representation abilities and resilience at SMP N 1 Idi; 2) increasing students' mathematical representation abilities through interactive learning media assisted by the developed RME-based Desmos; 3) increasing student resilience through interactive learning media assisted by the developed RME-based Desmos. This study is development research using the Tessmer development model, formative evaluation type. This development model consists of two development stages, namely preliminary (determination) and prototyping (design and evaluation). From the outcomes of trial I and trial II it was gotten: 1) Interactive learning media assisted by RME-based Desmos to improve students' mathematical representation abilities and resilience which was developed met the criteria of being valid, practical and effective; 2) Increasing mathematical representation abilities using interactive learning media assisted by RME-based Desmos which has been developed as seen from the N-gain value in trial I of 0.41, increasing to 0.47 in trial II, meaning it is in the "medium" category; and 3) Increasing student resilience with the RME approach that has been developed as seen from the N-gain value in trial I of 0.33, increasing to 0.51 in trial II, meaning it is in the "medium” category. Based on the study outcomes, it is recommended that teachers use interactive learning media assisted by Desmos in learning straight line equations to improve students' mathematical representation abilities and resilience.

Assessing Student Characteristics With The Right Instruments: An Important Pathway To Implementing A Merdeka Curriculum In Indonesia Elfitra, Elfitra; Armanto, Dian; Dewi, Izwita
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 9 No. 4 (2024): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v9i4.703

The implementation of Indonesia's Merdeka Curriculum necessitates a comprehensive understanding of student characteristics to support personalized learning experiences. This study explores the evaluation of student characteristics, assessment instruments, and their application in improving the learning process within the Merdeka Curriculum framework.To examine the evaluation of student characteristics, various assessment instruments, factors influencing instrument selection and application, and the benefits of evaluations in enhancing the learning process. This qualitative study employs a systematic literature review. The research steps include: 1) Collecting relevant literature from academic databases, focusing on journal articles, books, and government regulations related to the Merdeka Curriculum and student assessment; 2) Analyzing collected materials using content analysis techniques; 3) Synthesizing key themes and findings; 4) Validating results through data source triangulation and peer review. The study identifies key student characteristics for assessment, including cognitive abilities, learning readiness, motivation, learning styles, self-regulation, and social-emotional skills. Various assessment instruments are discussed, such as standardized tests, evaluation scales, performance-based assessments, interviews, and observations. Factors influencing instrument selection include assessment goals, student characteristics, and available resources. The benefits of student characteristic evaluations include informing adaptive instruction, providing targeted support, and monitoring student progress. Effective evaluation of student characteristics is crucial for implementing the Merdeka Curriculum and supporting student-centered learning in Indonesia. The study emphasizes the need for a shift towards process-oriented assessment and highlights the importance of collaboration among educational stakeholders to create an inclusive learning environment.

Development of interactive learning media assisted by Articulate Storyline 3 based on Android to improve the ability to understand mathematical concepts at SMPN 3 Stabat Fadila Khairunisa; Dian Armanto
Journal of Education Technology Information Social Sciences and Health Vol 3, No 2 (2024): September 2024
Publisher : CV. Rayyan Dwi Bharata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57235/jetish.v3i2.3398

This study aims to determine the quality (validity, practicality and effectiveness) of the results of the development of android-based Articulate Storyline 3-assisted interactive learning media to improve the ability of students to understand mathematical concepts that have been developed. This research is research and development or RD (Research and Development) that uses the ADDIE (Analysis, Design, Development, Implementation, Evaluation) development model. The subjects in this study are 30 students in grades VIII-2 SMPN 3 Stabat. The data collection techniques used in this study are interviews, observations, questionnaires and tests of mathematical concept comprehension ability. Based on the results of the validation of interactive learning media assisted by Articulate Storyline 3 based on android to improve the ability to understand mathematical concepts that have been developed by media experts and subject matter experts, an average percentage of 93% and 96.3% was obtained which was categorized as "very valid" or suitable for use. The average practicality presentation from the mathematics teacher's response of 94.5% was categorized as "very practical". And obtained an average percentage of effectiveness from student responses of 94.75% which was categorized as "very effective". Learning media is said to be effective judging from the completeness of students' learning classically reaching 90%. Percentage Increase in the students' answer process is seen from the increase in the test of mathematical concept comprehension based on the N-Gain score test of 0.77% which is categorized as high. Thus, based on the results of the validation of media experts, material experts, junior high school mathematics teachers and student responses, the android-based interactive learning media Articulate Storyline 3 to improve the ability to understand mathematical concepts has been developed feasible and tested for validity, practicality and effectiveness to be used in learning activities to improve comprehension skills students' mathematical concepts.

Pendampingan Literasi dan Numerasi Pada Pembelajaran Bahasa Inggris Tingkat Sekolah Dasar Husein, Rahmad; Lubis, Safrida; Armanto, Dian; Rahmadany, Savitri
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 5 No. 4 (2024): Jurnal Pengabdian kepada Masyarakat Nusantara (JPkMN) Edisi September - Desembe
Publisher : Lembaga Dongan Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55338/jpkmn.v5i4.4223

Program kemitraan masyarakat ini dilakukan pada tingkat sekolah dasar di desa medan estate. Kegiatan ini bertujuan untuk meningkatkan kompetensi guru dalam merancang dan menerapkan pembelajaran berbasis literasi numerasi dalam pembelajaran Bahasa inggris di sekolah dasar. Literasi numerasi didefinisikan sebagai kemampuan untuk menggunakan pemikirannya dalam menganalisis dan memahami suatu pernyataan melalui operasi memanipulasi simbol atau bahasa yang ditemukan di kehidupan sehari-hari dan dinyatakan secara tertulis dan lisan. Literasi merupakan keterampilan dasar yang membekali siswa dalam memilih dan menganalisis informasi penting. Sedangkan numerasi adalah keterampilan dasar yang memberikan siswa bekal untuk menerapkan konsep bilangan dan operasi dalam kehidupan sehari-hari. Namun pada kenyataanya, guru belum juga memahami mengenai konsep dasar dari literasi dan numerasi pada pembelajaran Bahasa inggris di sekolah dasar. Pembelajaran belum meningkatkan kemampuan siswa dalam berbahasa. Oleh karena itu, melalui kegiatan ini diharapkan guru dapat meningkatkan keterampilannya dengan menjadi guru yang lebih kompeten dalam menerapkan pembelajaran berbasis pada literasi numerasi yang menarik dan sesuai tingkat sekolah dasar dengan. Selain itu, juga diharapkan guru termotivasi untuk terus mengembangkan pembelajaran sesuai topik yang terus berkembang sesuai dengan daerah setempat.

DEVELOPMENT OF PBL-BASED FLIPBOOK TEACHING MATERIALS WITH SOUTHEAST ACEH CULTURAL NUANCES TO IMPROVE PROBLEM SOLVING AND CRITICAL THINKING SKILLS OF SMPN 4 LAWE SIGALA-GALA STUDENTS Silvi, Meutia; Armanto, Dian; Rangkuti, Yulita Molliq
Prima: Jurnal Pendidikan Matematika Vol 9, No 1 (2025): PRIMA : Jurnal Pendidikan Matematika
Publisher : FKIP Universitas Muhammadiyah Tangerang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31000/prima.v9i1.12711

Tujuan penelitian ini adalah: 1) Meningkatkan kemampuan pemecahan masalah siswa melalui bahan ajar flipbook berbasis PBL bernuansa budaya Aceh Tenggara yang dikembangkan; 2) Meningkatkan kemampuan berpikir kritis siswa melalui bahan ajar yang serupa; 3) Mengetahui keandalan, kegunaan, dan efektivitas bahan ajar flipbook berbasis PBL bernuansa budaya yang diciptakan untuk membantu mahasiswa menjadi lebih terampil dalam memecahkan masalah dan berpikir kritis; Penelitian ini merupakan penelitian pengembangan yang menggabungkan pembelajaran berbasis PBL dengan paradigma pengembangan ADDIE. Berdasarkan hasil uji coba lapangan, diperoleh hasil sebagai berikut: 1) Peningkatan keterampilan pemecahan masalah melalui bahan ajar flipbook berbasis PBL bernuansa budaya Aceh Tenggara, yang dibuktikan dengan nilai N-gain uji coba lapangan sebesar 0,70 yang termasuk dalam kategori "sedang"; 2) Peningkatan kemampuan berpikir kritis melalui bahan ajar flipbook berbasis PBL bernuansa budaya Aceh Tenggara, dibuktikan dengan nilai N-gain dari uji coba lapangan sebesar 0,67 yang termasuk dalam kategori "sedang"; dan 3) bahan ajar flipbook berbasis budaya Jawa telah berhasil dikembangkan untuk meningkatkan pemahaman siswa tentang konsep matematika dan motivasi belajar, serta telah memenuhi persyaratan valid, bermanfaat, dan efektif.

Development of LKPD through Cognitive Conflict Strategy Learning Assisted with Augmented Reality to Improve Mathematical Problem Solving Capability Rusmini, Rusmini; Simamora, Elmanani; Mulyono, Mulyono; Armanto, Dian; Muktar, Muktar
Ideguru: Jurnal Karya Ilmiah Guru Vol. 10 No. 2 (2025): May 2025 Edition
Publisher : Dinas Pendidikan, Pemuda dan Olahraga Daerah Istimewa Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51169/ideguru.v10i2.1768

This research aims to analyzing the validity, practicality and effectiveness of students' worksheets through cognitive conflict strategies to improve mathematical problem-solving abilities through learning cognitive conflict strategies assisted by Augmented Reality. The Ploomp model was used in this study. The subjects in this research are students in class VIII of SMP Negeri 4 Percut Sei Tuan. The research results showed that the student worksheet developed met the valid criteria based on an average score of 4.02, the practical student worksheet based on learning implementation IO =4.21 (high). The student worksheets developed have met the effective criteria in terms of classical completeness reaching 82.70%, student responses obtained above 80% for all students, namely 92%, increased problem- solving abilities seen from the average N-Gain value of trial of 0.30 increased to 0.60 in trial II, indicating that it was in the "medium" category. For the next implementation, it will be applied to several state junior high schools in Percut Sei Tuan District and analyze differences in mathematical problem-solving abilities seen from the school ranking, namely the accreditation of the state junior high school.

Development Of Discovery Learning Based Interactive Learning MediaTo Improve Students' Problem Solving Skills And Mathematical Disposition Al-Ulum Islamic Junior High School Integrated Medan Ramadhani, Nadya; Armanto, Dian; Mulyono, Mulyono
Daya Matematis: Jurnal Inovasi Pendidikan Matematika Vol 13, No 1 (2025): Maret (article in pres)
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26858/jdm.v13i1.71275

This study aims to develop and analyze the validity, practicality, and effectiveness of Interactive Learning Media Based on Discovery Learning in enhancing students' problem solving skills and mathematical disposition. This research employs the Research and Development (R&D) method with the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) development model. The learning media is developed in a digital format accessible via mobile devices or laptops and is designed interactively with an attractive interface, vibrant colors, and supplemented with audio and video learning materials. The Discovery Learning model implemented in this media consists of six main steps, namely stimulation, problem statement, data collection, data processing, verification, and generalization. Data collection techniques in this study included expert validation questionnaires, practicality questionnaires for students and teachers, as well as pretest and posttest assessments. The findings indicate that this Interactive Learning Media Based on Discovery Learning is highly valid, with an average validation score of 90.5% from subject matter experts, media experts, and design experts. Furthermore, this media achieved a practicality score of 86.72%, demonstrating that it is highly practical and easy to use by both students and teachers in the learning process. In terms of effectiveness, the posttest results show a significant improvement, with an average posttest score of 90% compared to the pretest score of 45.8%, confirming that this media is highly effective in enhancing students' understanding and problem-solving skills. Thus, based on validation results, practicality tests, and effectiveness evaluations, it can be concluded that the Interactive Learning Media Based on Discovery Learning has been proven to be valid, practical, and effective for use in mathematics learning, particularly in Systems of Linear Equations in Two Variables (SPLDV) for eighth-grade students at SMP Islam Al-Ulum Terpadu Medan. This media is expected to serve as an innovative alternative for improving the quality of mathematics learning and can be implemented more widely in various schools to support technology-based learning.

PELATIHAN PENYUSUNAN INSTRUMEN PENILAIAN BERBASIS HOTS BAGI GURU SD IT TAMAN CAHAYA SIANTAR Armanto, Dian; Suprayetno, Edi; Sinaga, Kurniawan; Sugiarto, Abdi
Reswara: Jurnal Pengabdian Kepada Masyarakat Vol 2, No 2 (2021)
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/rjpkm.v2i2.1225

Intrumen penilaian pembelajaran yang berkualitas merupakan alat ukur untuk mengetahui pencapaian hasil belajar siswa. Pelatihan penyusunan instrumen penilaian berbasis HOTS ini bertujuan untuk meningkatkan kemampuan para guru SD IT Taman Cahaya Siantar dalam menyusun instrumen penilaian berbasis HOTS. Kegiatan Pelatihan ini sangat dibutuhkan oleh para guru dikarenakan masih rendahnya kompetensi guru dalam mendesain instrument penilaian sesuai standar kurikulum. Melalui kegiatan ini para guru diberikan wawasan sekaligus kemampuan secara teknis dalam menyusun instrumen penilaian. Kegiatan pelatihan ini dibagi menjadi lima bagian, yaitu kegiatan pre-test, eksplorasi, elaborasi, konfirmasi dan post-test. Pada tahap pre-test para peserta mengerjakan soal yang berkaitan dengan penilaian berbasis HOTS, pada tahap eksplorasi narasumber melalukan brainstorming kepada peserta yang berkaitan dengan penilaian berbasis HOTS. Setelah melakukan brainstorming narasumber melakukan kegiatan elaborasi, yaitu penjelasan materi tentang penyusunan instrumen penilaian berbasis HOTS. Pada tahap konfirmasi, peserta pelatihan diarahkan untuk membentuk kelompok dan melakukan diskusi dalam menyusun instrumen penilaian berbasis HOTS. Tahap selanjutnya perwakilan kelompok mempresentasikan hasil diskusi di depan kelompok lainnya. Pada tahap post-test peserta mengerjakan soal yang berkaitan dengan materi pelatihan dengan hasil terdapat peningkatan nilai post-test dengan nilai peningkatan 59,52% dimana hasil rata-rata nilai post-test meningkat menjadi 74,60 dari nilai rata-rata pre-test 44,40 sehingga dapat disimpulkan bahwa hasil pelatihan ini secara signifikan dapat meningkatkan pengetahuan guru SD IT Taman Cahaya Siantar dalam mendesain instrumen penilaian berbasis HOTS

Co-Authors Abdi Sugiarto Abil Mansyur, Abil Addiestya Rosa Hutasuhut Ade Irwansah Nasution Agung Bakri Sihombing Agung Wibowo Al Hilal Hamdi Rambe Aman Simaremare Amanda, Nova Listia Amdani Manalu Amry, Zul Anggili Pratama Anggun Arditha Anim Anim Anita Yus Anita Yus Anita Yus, Anita Ardila, Ivo Ariqah, Lulu Luqyana Asmin Asmin Asmin Asmin Asmin Asmin, Asmin Astuti - Bina, Nuraini Sri Bornok Sinaga Bukhori, Bukhori DEDE RUSLAN Demmina Ginting Dewi Wahyuni Edi Suprayetno Edi Surya Edi Surya, Edi Edy Surya Edy Surya Elfira Rahmadani Elfitra Elfitra ELVI MAILANI ELVI MAILANI Elvis Napitupulu, Elvis Ely Syafitri Erlinawaty Simanjuntak Fadila Khairunisa Fasti Rola Giawa, Freddy Gultom, Rahmad H Hanna Putri Syahkira Hartono Hartono Hasibuan, Eka Khairani Hasibuan, Subriadi Hasratuddin Hasratuddin Hasratuddin Hasratuddin Hasratuddin Siregar Hasratuddin Siregar Helina Qatrunnada Nasution Heru Setiawan Girsang Ibnatun Salis Ida Karnasih Imelda L. Ritonga Izwita Dewi Jesica Dhea Chyntia Khairida Matondang Khairin Nazmi AR Khairul Amri Khalida Rahmah Kurniawan Sinaga Lilea Calin Br Tarigan Lintang, Luthfiah Lita Datita Saragih Luthfiah Lintang M Yus Efendi, M Yus Mara Bangun Harahap Mara Bangun Harahap Marzuki Marzuki Maulana Arafat Lubis Maya Alemina Ketaren Mazaly, Muhammad Rizky Meutiara Sari, Debby Monica Dina Rosari Sihite Muhammad Arif Hidayat Mukhtar Mukhtar Muktar, Muktar Mulyono Mulyono Nabila Nasution Naeklan Simbolon Nanda Ayu Setiawati Nashran Azizan Natasya Sihombing Nazwa Mutia Syafitri Nilam Sari Nupus, Nurhayatun Panjaitan, Marojahan Pardomuan Sitompul pargaulian siagian siagian Putri Mas Intan Silalahi Rahmad Husein Rahmadany, Savitri Rahmi Hayati Rahmi Ramadhani Raisyah Aulia Nabila Lubis Rajaguguk, Waminton Ramadhani, Nadya Rani Handayani Sihombing Renata Siburian Rusmini Rusmini Rustam A. Effendi Safrida Lubis Sahat Saragih Sahat Saragih Setiawati, Nanda Ayu Shofyani Salasa Silvi, Meutia Simamora, Elmanani Siregar, Jodi Mahmud Siswahyudianto Siti Habsari Pratiwi, Siti Siti Maysarah Siti Maysarah Siti Salamah Br Ginting Suci Frisnoiry Sudianto Pasaribu Sugianto . Sugianto Sugianto Sugiarto, Abdi Syahputra, Fikry Prastya Syeila Fatiha Titim Eliawati Tiur Malasari Siregar Ummu Habibah Hadi Kesuma Vian Anotona Giawa Wildansyah Lubis Yeanny Suryadi Yessi Kartika Yulita Molliq Rangkuti Zenfitri R. Situmorang Zuhra Munifah Harahap Zuraini Zuraini

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