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All Journal International Journal of Evaluation and Research in Education (IJERE) Cakrawala Pendidikan Jurnal Pendidikan Matematika Undiksha Jurnal Pendidikan Sains Jurnal Sekolah Dasar Journal on Mathematics Education (JME) Jurnal Infinity Jurnal Pemikiran dan Pengembangan Sekolah Dasar (JP2SD) Journal on Mathematics Education (JME) Kontinu: Jurnal Penelitian Didaktik Matematika AKSIOMA: Jurnal Program Studi Pendidikan Matematika JIPM (Jurnal Ilmiah Pendidikan Matematika) Edu Sains: Jurnal Pendidikan Sains dan Matematika EDU-MAT: Jurnal Pendidikan Matematika Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan AKSIOMA Briliant: Jurnal Riset dan Konseptual Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami) Sekolah Dasar: Kajian Teori dan Praktik Pendidikan Jurnal Kajian Pembelajaran Matematika Al Ishlah Jurnal Pendidikan KALAMATIKA Jurnal Pendidikan Matematika JRPM (Jurnal Review Pembelajaran Matematika) Jurnal Penelitian Pendidikan IPA (JPPIPA) JMPM: Jurnal Matematika dan Pendidikan Matematika PRISMA JOHME: Journal of Holistic Mathematics Education Pi: Mathematics Education Journal JTAM (Jurnal Teori dan Aplikasi Matematika) Jurnal Cendekia : Jurnal Pendidikan Matematika QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Jurnal Math Educator Nusantara: Wahana Publikasi Karya Tulis Ilmiah di Bidang Pendidikan Matematika EDUPEDIA JTP - Jurnal Teknologi Pendidikan International Journal of Insights for Mathematics Teaching (IJOIMT) Indonesian Journal of Electrical Engineering and Computer Science Jurnal Paedagogy Ideguru: Jurnal Karya Ilmiah Guru Padaringan : Jurnal Pendidikan Sosiologi Antropologi Mosharafa: Jurnal Pendidikan Matematika Early Childhood and Family Parenting Journal International Journal of Progressive Mathematics Education JCP (Jurnal Cahaya Pendidikan) Fakultas Keguruan dan Ilmu Pendidikan Journal of Disruptive Learning Innovation (JODLI) Journal of Advanced Sciences and Mathematics Education Inovasi Matematika (Inomatika) Research and Development in Education (RaDEn) Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya Pi: Mathematics Education Journal Electronic Journal of Education, Social Economics and Technology Jurnal MIPA dan Pembelajarannya MATHEdunesa International Journal of Trends in Mathematics Education Research (IJTMER) Jurnal Penelitian Pendidikan Indonesia Jurnal Infinity Jurnal Pendidikan MIPA Journal on Mathematics Education
Cholis Sa’dijah
Universitas Negeri Malang
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Journal : Jurnal Infinity

 1 
REFLECTIVE THINKING CHARACTERISTICS: A STUDY IN THE PROFICIENT MATHEMATICS PROSPECTIVE TEACHERS Cholis Sa'dijah; Muhammad Noor Kholid; Erry Hidayanto; Hendro Permadi
Jurnal Infinity Vol 9, No 2 (2020): VOLUME 9, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v9i2.p159-172

Abstract

Reflective thinking begins with repeated confusion and evaluation to solve a problem. There are four aspects to reflective thinking, namely techniques, monitoring, insight, and conceptualization. However, the problem-solvers’ reflective thinking characteristics in mathematical problems have not been discovered. The study describes the reflective thinking characteristics of proficient mathematics prospective teachers based on four aspects. The qualitative research was conducted at Universitas Muhammadiyah Surakarta with a total of 64 reflective thinkers. Data collected by test, observation sheets, and interview methods. The tests were administered twice. The instruments developed has been through the validation process and declared valid. Data analyzed through the stages of reduction, presentation, and verification. We successfully conclude that proficient mathematics prospective teachers have complete and consistent reflective thinking characteristics. Further research can be focused on the characteristics of reflective thinking based on another aspect.
Empowering students’ numeracy skills: Mathematics teachers’ perceptions regarding the effectiveness and challenges of Indonesian national curriculum and the programs – A mixed method study Hidayah, Irma Rachmah; Sa'dijah, Cholis; Anwar, Lathiful; Yerizon, Yerizon; Arnawa, I Made
Jurnal Infinity Vol 14 No 1 (2025): VOLUME 14, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v14i1.p163-188

Abstract

As the Indonesian National Curriculum (INC), the Merdeka curriculum was implemented in response to students' difficulties in comprehending and utilizing basic mathematics, contributing to low numeracy skills. This study investigated mathematics teachers' perceptions in Indonesia concerning the effectiveness of INC and the supporting programs, such as the National Assessment (NA) and Pancasila Student Profile (PSP), in improving students' numeracy skills. It also aimed to identify mathematics teachers' challenges in integrating numeracy skills into the curriculum and these programs. A mixed-method study with a sequential explanatory design was used to achieve this objective. The data collection was carried out through quantitative and qualitative approaches. Closed questionnaires were explicitly used for quantitative data, while open questionnaires and interviews were used for qualitative data. Inferential statistics were used to analyze the quantitative data and a thematic analysis for qualitative data. The quantitative results showed that most teachers positively perceived the effectiveness of INC and the programs in empowering students' numeracy skills. The implementation of INC and PSP significantly influenced the empowerment of numeracy skills. The qualitative analysis provided an in-depth exploration of teachers' perceptions and the challenges faced in promoting numeracy skills in implementing INC and the programs.
Development of mobile augmented reality-based geometry learning games to facilitate spatial reasoning Mandala, Arif Sapta; Anwar, Lathiful; Sa'dijah, Cholis; Zulnaidi, Hutkemri
Jurnal Infinity Vol 14 No 2 (2025): VOLUME 14, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v14i2.p323-348

Abstract

Geometry learning requires a comprehensive understanding of spatial reasoning, but students face difficulty in mastering the skill. As a virtual technology, Augmented Reality (AR) offers a solution to overcome the challenges in spatial reasoning with the potential to represent and manipulate objects and develop spatial images mentally. Therefore, this research aimed to develop a mobile educational game named GEMBI AR to support students' spatial reasoning skills in geometry learning. The ADDIE model consists of analysis, design, development, implementation, and evaluation phases used to conduct research and development (R&D). The participants included six expert validators, two mathematics teachers, and eighteen eighth graders. In addition, the expert validators validated GEMBI AR in terms of quality. The result showed that GEMBI AR was valid as a geometry learning tool. According to the feedback of teachers and students, GEMBI AR was practical for educational purposes since the application positively impacted spatial reasoning. Students' spatial reasoning skills were also enhanced to compare the differences in the pre-test and post-test using Wilcoxon (Z = –3.578, p = 0.000 < 0.05). Meanwhile, the N-Gain score of 0.576, showing moderate improvement, reflected gains in spatial perception, mental rotation, and visualization. These findings suggest that GEMBI AR is a functional and valid educational resource useful for helping students develop geometric spatial reasoning. Thus, geometry learning supported by GEMBI AR has the potential to enhance spatial reasoning in secondary school.
Empowering students’ numeracy skills: Mathematics teachers’ perceptions regarding the effectiveness and challenges of Indonesian national curriculum and the programs – A mixed method study Hidayah, Irma Rachmah; Sa'dijah, Cholis; Anwar, Lathiful; Yerizon, Yerizon; Arnawa, I Made
Jurnal Infinity Vol 14 No 1 (2025): VOLUME 14, NUMBER 1, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v14i1.p163-188

Abstract

As the Indonesian National Curriculum (INC), the Merdeka curriculum was implemented in response to students' difficulties in comprehending and utilizing basic mathematics, contributing to low numeracy skills. This study investigated mathematics teachers' perceptions in Indonesia concerning the effectiveness of INC and the supporting programs, such as the National Assessment (NA) and Pancasila Student Profile (PSP), in improving students' numeracy skills. It also aimed to identify mathematics teachers' challenges in integrating numeracy skills into the curriculum and these programs. A mixed-method study with a sequential explanatory design was used to achieve this objective. The data collection was carried out through quantitative and qualitative approaches. Closed questionnaires were explicitly used for quantitative data, while open questionnaires and interviews were used for qualitative data. Inferential statistics were used to analyze the quantitative data and a thematic analysis for qualitative data. The quantitative results showed that most teachers positively perceived the effectiveness of INC and the programs in empowering students' numeracy skills. The implementation of INC and PSP significantly influenced the empowerment of numeracy skills. The qualitative analysis provided an in-depth exploration of teachers' perceptions and the challenges faced in promoting numeracy skills in implementing INC and the programs.
Development of mobile augmented reality-based geometry learning games to facilitate spatial reasoning Mandala, Arif Sapta; Anwar, Lathiful; Sa'dijah, Cholis; Zulnaidi, Hutkemri
Jurnal Infinity Vol 14 No 2 (2025): VOLUME 14, NUMBER 2, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v14i2.p323-348

Abstract

Geometry learning requires a comprehensive understanding of spatial reasoning, but students face difficulty in mastering the skill. As a virtual technology, Augmented Reality (AR) offers a solution to overcome the challenges in spatial reasoning with the potential to represent and manipulate objects and develop spatial images mentally. Therefore, this research aimed to develop a mobile educational game named GEMBI AR to support students' spatial reasoning skills in geometry learning. The ADDIE model consists of analysis, design, development, implementation, and evaluation phases used to conduct research and development (R&D). The participants included six expert validators, two mathematics teachers, and eighteen eighth graders. In addition, the expert validators validated GEMBI AR in terms of quality. The result showed that GEMBI AR was valid as a geometry learning tool. According to the feedback of teachers and students, GEMBI AR was practical for educational purposes since the application positively impacted spatial reasoning. Students' spatial reasoning skills were also enhanced to compare the differences in the pre-test and post-test using Wilcoxon (Z = –3.578, p = 0.000 < 0.05). Meanwhile, the N-Gain score of 0.576, showing moderate improvement, reflected gains in spatial perception, mental rotation, and visualization. These findings suggest that GEMBI AR is a functional and valid educational resource useful for helping students develop geometric spatial reasoning. Thus, geometry learning supported by GEMBI AR has the potential to enhance spatial reasoning in secondary school.
Developing adaptive digital book (ADB) in enhancing students’ numeracy literacy ability Yerizon, Yerizon; Arnellis, Arnellis; Suherman, Suherman; Arnawa, I Made; Sa'dijah, Cholis; Anwar, Lathiful
Jurnal Infinity Vol 14 No 3 (2025): VOLUME 14, NUMBER 3, INFINITY
Publisher : IKIP Siliwangi and I-MES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22460/infinity.v14i3.p571-586

Abstract

Numeracy literacy is essential for students to solve interrelated problems across various subjects. However, students' numeracy literacy skills remain low, necessitating innovative learning resources. This research focuses on designing an Adaptive Digital Book (ADB) that is claimed to be valid, practical, and effective in improving students' numeracy literacy. This study adopted a design research approach in the context of development studies, which included two main phases: the preliminary phase and the formative evaluation phase, which included self-evaluation, expert evaluation, and iterative evaluation (one-to-one, small group, and field test). Quantitative and qualitative data were gathered through assessment of numeracy literacy, interviews, and distributing questionnaires. Results showed that ADB is practical and effective in its validity as well as in meeting the requirements of students with different learning needs. The combination of multimedia elements like videos caters to visual and auditory learners, which helps improve their numeracy literacy skills.
Co-Authors Abdul Halim Abdullah Abdul Haris Rosyidi Abdul Haris Rosyidi Abdul Jamil Abdul Jamil Abdullah, Abdul Halim Abdur Rahman As’ari Abdur Rohim, Abdur Agus Hidayat Agus Setiawan Agus Setiawan Ahmad Farid Haebah Ahyansyah, Ahyansyah Ainun Naziya Rohmah Akhmad Riandy Agusta Akmalia, Yuyun Alfiani Athma Putri Rosyadi Alifiana Mareta Anggara Dwinata Anita Dewi Utami Aribowo, Bayu Exsanty Arif Yunet Priyo Tatagno Arik Murwanto Ariyadi Wijaya Arnellis, Arnellis Asih Kurnia Asih Aura Sya’banningrum Aynin Mashfufah Azizah Nur Laily Rahmawati Bagus Cahyanto Chusnul Ma&#039;rifah Chusnul Ma&#039;rifah Dedi Kuswandi Deni Hamdani Desi Rahmadani Desyandri Desyandri Dewi Astutik Dewi Astutik Dewi, Aulia Rahma Dian Wardhani Dyah Triwahyuningtyas Dyah Triwahyuningtyas Dyaswardani, Hapsari Eddy Sutadji Edy Bambang Irawan Eka Damayanti Eka Damayanti Eko Waluyo Emy Yunita Rahma Pratiwi Erry Hidayanto Ery Tri Djatmika RWW Ety Tejo Dwi Cahyowati Fatikh Inayahtur Rahma Fimmatur Rizka Ardina Fimmatur Rizka Ardina, Fimmatur Rizka Firdaus Dyah Utami Firdha Mahrifatul Zana Firdha Mahrifatul Zana Firman Tsabbit Abqari Fithriyah, Inayatul Fitri Kumalasari Flavia Aurelia Hidajat, Flavia Aurelia Galuh Putri, Yuniar Heksaria Hajjah Rafiah Handayani, Ucik Fitri Hanurawan, Fattah Heni Pujiastuti Henry Praherdhiono Herawati Susilo Heri Purnomo Heri Setiawan Heri Susanto Herti Prastitasari Hery Susanto Hery Susanto Hidayah, Irma Rachmah Himmatul Ulya Huljannah, Miftha Husniyah, Hana Kholifatul I Ketut Suada I Made Arnawa I Made Sulandra I Nengah Parta I Nyoman Sudana Degeng I Wayan Dasna Ika Ratih Sulistiani Imam Rofiki Imelda Dastania Pradani Imro&#039;atul Mubarokah Imro'atul Mubarokah Indriati Nurul Hidayah Intan Sari Rufiana Istiqomah, Roshydatul Itsnaniya Fatwa Nurani Khafidhoh Nurul Aini Khalimatus Syuhriyah Khusnil Khatimah Khusnul Khotimah Kristayulita Kristayulita Kumala, Shifni Afida Kusumaningtyas, Nopem Labuem, Susana Lathiful Anwar Latifah, Eka Ratna Anjanuarti Laurentcia Noviafta Widya Lenita Puspitasari Luluk Faridatuz Zuhroh Luluk Wahyu Nengsih M. Misbachul Huda Maimunah Maimunah Maimunah, Maimunah Makbul Muksar Mandala, Arif Sapta Martini Dwi Purnama Maulidiyah Tutut Nurjanah Mayangsari, Aprilia Dwi Miftha Huljannah Mila Sekar Ayu Mohamad Aminudin Mohammad Akbar Mubarokah, Imro'atul Muhammad Ainur Rizqi Muhammad Kharis Muhammad Noor Kholid Muhana Gipayana Muhana Gipayana Mujiyem Sapti Mujiyem Sapti Mukhlis Mukhlis Mulia, Abigail Christina Murpratiwi, Gendis Murwanto, Arik Nafi Isbadrianingtyas Nazila Naf’atu Fina Nita Retno Wahyuningati Novitasari, Herawati Nugraheni, Dinda Dwi Nur Inayah Ahlan Nur Kharisma Widya Agustin Nurrahmawati Nurrahmawati Nurrahmawati Nurul Audhifa Utami Oktaviana, Lucky Tri P Purwanto Permadi, Hendro Pity Asriani Pranata, Syalshabil Shafa Punaji Setyosari Purnomo, Purnomo Purwanto Purwanto Purwanto Purwanto Purwanto Purwanto Purwosetiyono, Fransiskus Xaverius Didik Puspitasari, Septi Putri, Novi Rahmadani Putri, Novi Rahmadhani Qohar, Abd. Rahmawati, Azizah Nur Laily Ramdhan Fazrianto Suwarman Ratri Rahayu Renika Arisinta Resyarusyda Parandrengi Ria Norfika Yuliandari Rini Nurhakiki Risa Utaminingsih Rizka Riana Rizka Zulvana Wardhani Rizky Nova Damayanti Rizqi, Muhammad Ainur Rustanto Rahardi Sa'dun Akbar Saad, Muhamad Ikhwan Mat Saiful Anwar Saputri, Risma Rintias Sari, Feti Eka Ratna Sari, Marinda Rosita Satrio Agung Prabowo Sepharyanto Sepharyanto Sisworo Sisworo, S Siti Chusnia Siti Lailiyah Siti Salina Mustakim Sri Subarinah Styo Mahendra Wasita Aji Subanji Subanji Subanji Suci Zuhriati Sudirman Sudirman Sudirman Suherman, Suherman Sukoriyanto Sumarmi Susiswo Suwanti, Vivi Suwito, Ruth Widyati Swasono Rahardjo Syadidah, Pratama Fitri Syamsul Hadi Syifa’ul Amamah Tatik Retno Murniasih Titik Harsiati Tjang Daniel Chandra Tomi Listiawan Toto Nusantara Vinarahmah, Aula Rizqi Vita Kusumasari Wahyu Nurlaili Wasilatul Murtafiah Widi Ardianto Widya, Laurentcia Noviafta Wikan Budi Utami Yerizon Yerizon Yudhi Hanggara Zana, Firdha Mahrifatul Zukhrufurrohmah, Zukhrufurrohmah Zulnaidi, Hutkemri