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Integrating Congruence Geometry in Strengthening Numeracy Among Junior High School Students: A Case Study Nurhayati, Elis; Abadi , Agus Maman; Wijaya, Ariyadi
International Journal of Geometry Research and Inventions in Education Vol. 2 No. 02 (2025)
Publisher : EDUPEDIA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56855/gradient.v2i02.1775

Abstract

This study examined the effectiveness of integrating congruence geometry into contextual numeracy learning to enhance junior high school students’ mathematical reasoning. A qualitative case study with quantitative support was conducted with 32 eighth-grade students and one mathematics teacher at a public school in West Java, Indonesia. The intervention included eight lessons embedding geometric transformations—reflection, rotation, and translation—into culturally relevant numeracy tasks such as batik and tiling designs. Data were collected through pretests, posttests, classroom observations, and interviews. Results showed a 43% improvement in contextual numeracy indicators and a significant increase in students’ ability to recognize congruent shapes, explain geometric reasoning, and apply transformations to real-life problems (t(31) = 6.42, p < 0.001). Observational and interview data revealed greater engagement, collaboration, and reduced mathematics anxiety. Findings support the four-dimensional numeracy framework (Goos et al., 2014) and Battista’s theory of geometric reasoning (2007), emphasizing that contextual and culturally grounded tasks foster conceptual understanding and motivation. The study concludes that contextualized geometry-based numeracy instruction effectively promotes students’ understanding, transfer of learning, and confidence, offering implications for developing culturally responsive mathematics curricula.
PENGARUH MODEL PEMBELAJARAN TEAMS GAMES TOURNAMENT TERHADAP DISPOSISI MATEMATIS SISWA KELAS XI KKO SMAN 1 SEWON Safira, Silvie; Wijaya, Ariyadi
Jurnal Pedagogi Matematika Vol 11, No 2 (2025): Jurnal Pedagogi Matematika
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpm.v11i2.19627

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran kooperatif tipe Teams Games Tournament terhadap disposisi matematis pada siswa kelas XI KKO SMA Negeri 1 Sewon. Jenis penelitian ini penelitian eksperimen semu yang didesain dalam The Non-equivalent Pretest Posttest Control Group Design, dilakukan pada siswa kelas XI KKO SMA Negeri 1 Sewon, kelas XI IPS 4 sebagai kelas kontrol menggunakan model konvensional dan kelas XI MIPA 6 sebagai kelas eksperimen menggunakan model Teams Games Tournament. Instrumen penelitian berupa lembar observasi keterlaksanaan pembelajaran oleh guru, lembar angket awal dan akhir disposisi matematis, serta dokumen hasil belajar. Uji statistic yang digunakan yaitu independent sample t-test. Berdasarkan hasil uji hipotesis menggunakan taraf signifikansi 5% menunjukkan bahwa model pembelajaran tipe Teams Games Tournament berpengaruh positif terhadap disposisi matematis siswa kelas XI KKO.
Pengembangan Video Animasi Melalui CapCut Berbasis Model Pembelajaran Metakognisi Kolaboratif pada Konten Fenomena Pertumbuhan untuk Meningkatkan Literasi Matematika Maharani, Rizqona; Marsigit, Marsigit; Wijaya, Ariyadi; Muqoddaroh, Fadillatul
Jurnal Tadris Matematika Vol 7 No 2 (2024)
Publisher : Universitas Islam Negeri Sayyid Ali Rahmatullah Tulungagung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21274/jtm.2024.7.2.159-174

Abstract

The research was conducted to improve mathematical literacy skills in the content of the growth phenomenon in class VIII C MTs Miftahul Huda through the development of learning videos based on the collaborative metacognition learning model assisted by CapCut. The research method used is the Research and Development Plomp model through three phases, namely preliminary analysis, prototyping, and assessment. Preliminary analysis produces the need for packaging mathematics learning that can invite students to understand mathematics material easily and solve contextual problems appropriately, so that students' mathematical literacy skills can be improved. Prototyping is carried out by designing a learning video that contains a video opening, problem presentation, problem solving, mathematical concept discovery, and video closing. The assessment was carried out by means of feasibility tests, practicality tests, and learning video effectiveness tests. The results of the video feasibility test from media experts were 0.97 and material experts were 0.97 which stated that they were very valid (feasible). Students rated the videos as very easy to use, useful, engaging, and encouraged metacognitive (practical) activities. Students' mathematical literacy increased in the medium category after using learning videos based on the collaborative metacognition learning model. Students need to get used to building mathematical concepts through contextual problem-solving even though their application takes a relatively long time. On this basis, advanced researchers need to consider the advantages of online learning that provide students with learning flexibility in building their mathematical understanding.
Microteaching Frequency and the Development of Teaching Skills and Pedagogical Content Knowledge among Prospective Mathematics Teachers Rosnawati, Raden; Wijaya, Ariyadi; Tuharto, Tuharto; Caturiyati, Caturiyati; Santos, Mariano Dos
Jurnal Pendidikan MIPA Vol 26, No 4 (2025): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpmipa.v26i4.pp2124-2138

Abstract

The teaching skills developed by prospective teachers are often repeated in different situations. Therefore, the optimal frequency of microteaching practices may influence both teaching skills and pedagogical content knowledge. This study used a cross-sectional design to compare teaching skills and pedagogical content knowledge among groups based on the frequency of microteaching practices conducted by prospective mathematics teachers. A total of 79 students were randomly selected from three universities in Yogyakarta that implemented microteaching with varying frequencies. These frequencies were classified into four categories: once, twice, three times, and more than three times. Teaching skills were assessed using observation sheets that outlined aspects such as explaining skills, asking questions, providing guidance, providing reinforcement, managing whiteboard use, and regulating body movement (non-verbal cues). Pedagogical content knowledge was measured using a test instrument. Data were analyzed using descriptive statistics and a one-way ANOVA test. The results showed that the frequency of practice has a different impact on teaching skills and pedagogical content knowledge. Prospective teachers who practiced microteaching more than three times significantly differed in their explaining skills, while their providing reinforcement differed significantly from those who practiced at least three times. Conversely, prospective teachers who practiced twice performed similar levels of skill in asking questions, whiteboard management, and regulating body movement compared to those who practiced more frequently. Pedagogical content knowledge of prospective teachers who practiced more than three times was significantly higher than that of those who practiced three or fewer times. These findings suggest that universities should carefully regulate the frequency of microteaching practices to optimize students' teaching skills and pedagogical content knowledge in mathematics education for those who aspire to become effective mathematics teachers. These findings suggest that universities should carefully regulate the frequency of microteaching practices to optimize students' teaching skills and pedagogical content knowledge in mathematics education students who aspire to become effective mathematics teachers.    Keywords: teaching skills, microteaching, mathematics.  
Perangkat Realistic Mathematics Education Berbantuan Teknologi yang Berorientasi pada Kemampuan Numerasi dan Rasa Ingin Tahu Andini, Anggia Dwi; Wijaya, Ariyadi
Jurnal Pendidikan Matematika dan Sains Vol. 13 No. Special_issue (2025): Integrasi Pendidikan Matematika dan Sains dalam Mendukung Sustaina
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpms.v13iSpecial_issue.89849

Abstract

Penelitian ini bertujuan mengembangkan perangkat pembelajaran berbasis Realistic Mathematics Education (RME) berbantuan teknologi yang berorientasi pada kemampuan numerasi dan rasa ingin tahu siswa SMK, serta mendeskripsikan kualitasnya berdasarkan kriteria valid, praktis, dan efektif. Penelitian ini menggunakan model pengembangan ADDIE yang meliputi tahapan Analysis, Design, Development, Implementation, dan Evaluation. Subjek penelitian adalah 16 siswa kelas XI Teknik Konstruksi dan Perumahan SMK Negeri di Semarang. Hasil penelitian menunjukkan perangkat pembelajaran yang dihasilkan menampakkan tahapan RME serta indikator numerasi dan rasa ingin tahu. Penilaian validitas memenuhi kriteria sangat valid, dengan skor 109 untuk modul ajar dan 74,5 untuk LKPD. Kepraktisan dinilai sangat praktis oleh guru dengan skor 54, dan 87,5% siswa menilai minimal praktis. Keterlaksanaan pembelajaran mencapai rata-rata > 80%. Keefektifan terlihat dari ketuntasan tes numerasi 81,25%, rata-rata nilai 82,4, serta rasa ingin tahu tinggi mencapai 81,25%. Jadi, perangkat pembelajaran memenuhi kriteria valid, praktis, dan efektif dalam meningkatkan kemampuan numerasi dan rasa ingin tahu. Penelitian ini mendukung pencapaian Sustainable Development Goals ke-4.
Development of Interactive E-Module with Realistic Mathematics Education (RME) Approach to Increase Numeracy Skills and Mathematical Growth Mindset Vevi Arini Azizatus Sufaidah; Ariyadi Wijaya
International Journal of Science and Mathematics Education Vol. 2 No. 3 (2025): September: International Journal of Science and Mathematics Education
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/ijsme.v2i3.237

Abstract

This research aims to: (1) produce mathematics learning media in the form of interactive e-modules with a learning approach.realistic mathematics education (RME) which is oriented towards numerical ability and mathematical growth mindset students and describe their characteristics; (2) describe the quality of the learning e-module which meets the criteria of being valid, practical and effective so that it is suitable for use by junior high school students using the approach realistic mathematics education (RME). The development model used in this development research is the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The research subjects consisted of one teacher and 32 seventh grade students of SMP Negeri 3 Pajangan in Bantul Regency, Yogyakarta, who participated in this research.The results of the study show that the developed e-module has the following main characteristics: (1) using the RME approach in learning strategies; (2) facilitating the improvement of numeracy through learning videos, LKPD, and quizzes; (3) fostering growth mindset through motivational videos, inspirational sentences, discussion spaces, as well as feedback and self-evaluation features; and (4) using test- and questionnaire-based evaluation instruments. Validity tests showed very good results with an average score of 96% from media experts and 98% from material experts. The practicality of the e-module was assessed as very good by teachers (96.19%) and good by students (80.47%), and the implementation of learning reached 96.8%. Effectiveness was proven through MANOVA and t-tests which showed a significant increase in numeracy and mathematical growth mindset after using the e-module. Thus, the RME-based interactive e-module is suitable for use as an innovative mathematics learning medium at the junior high school level.
Realistic Mathematics Textbook Toward The Students’ Mathematical Generalization Skills Suwanto, Fevi Rahmawati; Wijaya, Ariyadi; Aprisal; Fauzi, Asri; Tobondo, Yunda Victorina
Mosharafa: Jurnal Pendidikan Matematika Vol. 12 No. 2 (2023): April
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v12i2.784

Abstract

Generalisasi merupakan ciri siswa dapat berpikir matematis. Guru dapat mengembangkan bahan ajar berbentuk buku teks untuk memfasilitasi kemampuan generalisasi. Penelitian ini merupakan hasil pengembangan model ADDIE yaitu tahap penerapan dan evaluasi, dengan produk berupa buku teks matematika kelas VIII semester genap yang berorientasi pada kemampuan generalisasi matematis siswa. Buku teks dengan pendekatan Pendidikan Matematika Realistik (RME) ini memuat lima prinsip meliputi eksplorasi fenomenologi, menjembatani dengan instrumen vertikal, kontruksi dan produksi siswa, interaktivitas, dan keterkaitan. Melalui alur kegiatan pemberian lebih dari satu konteks permasalahan, identifikasi kesamaan pola atau strategi hingga penarikan kesimpulan terkait materi, serta pemberian latihan soal pemodelan, buku teks ini telah memfasilitasi kemampuan generalisasi matematis. Berdasarkan hasil penerapan buku teks yang melibatkan 30 siswa kelas VIII salah satu SMP Negeri di Yogyakarta, persentase banyaknya siswa pada kategori good memenuhi batas minimal 75% yaitu mencapai 93,33%. Generalization is a feature that students can think mathematically. Teachers can develop teaching materials in the form of textbooks to facilitate generalization abilities. This study was the developmental stage of ADDIE model, namely the implementation and evaluation. The study produced a textbook for 8th grade even semester which was oriented to students' mathematical generalization skills. The textbook integrating a realistic mathematics education approach contained five principles including phenomenological exploration, bridging by vertical instruments, pupils’ own constructions and productions, interactivity, and intertwining. The flow of activities provided more than one problem context, identifying similarities in patterns or strategies to draw conclusions related to the material as well as modeling exercises to facilitate students' mathematical generalization abilities. Based on the results of textbook implementation involving 30 8th grade students from one of a state junior high school in Yogyakarta, the percentage of students in good category met the minimum point of 75%, which reached 93.33%.
Mempengaruhi Keputusan Calon Pelamar CPNS Dosen Melalui Webinar Kiat Sukses Memilih Formasi Wangsa, Arma; Naing, Ince Rezky; Yansa, Hajra; Salido, Achmad; Rahman, Gusti Arviana; Firdaus, Andi Mulawakkan; Wijaya, Ariyadi
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.v5i4.4763

Abstract

There are prospective applicants for Civil Servant Candidate (CPNS) positions, particularly for lecturer roles, who still feel uncertain about the formations they plan to apply for. This uncertainty stems from several factors, including the time and selection process, the number of available positions, the number of applicants, and the passing score threshold. In light of these considerations, this article seeks to explain how the webinar on tips for successfully choosing lecturer formations influenced the decisions of prospective CPNS applicants in selecting a formation. The webinar was conducted in three main phases: pre-implementation, implementation, and evaluation. The results of this community service initiative show that the webinar influenced the decisions of prospective CPNS lecturer applicants in choosing a formation. Before attending the webinar, only about 30.8% felt confident in their decision, but after attending, this percentage increased to around 93.3%. Participants who were initially unsure about their choices became more confident after the webinar, with two main outcomes. The first was that participants became more confident in their original choice, and the second was that participants felt confident to switch to another formation.
The Effect of Self-Efficacy on Students’ Mathematical Abilities: A Meta- Analysis Study Kamsurya, Marwa Astriani; Wijaya, Ariyadi; Ramadhani, Rahmi; Hukom, Julham
Jurnal Pendidikan Progresif Vol 12, No 2 (2022): Jurnal Pendidikan Progresif
Publisher : FKIP Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Objective: This study investigates the effect of diei efficacy on students' mathematical abilities. Methods: The research design used in this study is a meta-analysis by analyzing 16 studies published in journals indexed by SCOPUS with a sample of 73935 people in various countries. To support the accuracy of the analysis results, OpenMEE software is used. Findings: The results revealed that the combined effect size values generated using the random-effect model estimate were (g = 0.518; p < 0.001) with a standard error (SE = 0.031). This effect size belongs to the medium effect category. Conclusion: Thus, it can be concluded that self-efficacy has a positive and significant effect on students' mathematical abilities.Keywords: mathematics ability, self-efficacy, and meta-analysis.DOI: http://dx.doi.org/10.23960/jpp.v12.i2.202205
ETNOMATEMATIKA: EKSPLORASI KONSEP MATEMATIKA DAN NILAI KARAKTER PADA PERMAINAN TRADISIONAL JAWA GANJILAN Astuti, Erni Puji; Hanum, Farida; Wijaya, Ariyadi; Purwoko, Riawan Yudi
AXIOM : Jurnal Pendidikan dan Matematika Vol 11, No 2 (2022)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/axiom.v11i2.12503

Abstract

Penelitian ini bertujuan untuk mendeskripsikan hasil eksplorasi konsep matematika dan nilai karakter dalam permainan tradisional Jawa Ganjilan. Penelitian ini merupakan penelitian kualitatif dengan pendekatan etnografi. Tahapan etnografi dalam penelitian ini adalah menentukan subjek penelitian, melakukan observasi dan wawancara selama permainan, membuat catatan hasil, dan menganalisis temuan. Pengumpulan data dilakukan melalui studi kepustakaan, video, observasi, dan wawancara mendalam. Teknik analisis data dilakukan dengan reduksi data, penyajian data, dan penarikan kesimpulan. Analisis data dilakukan untuk mengidentifikasi konsep matematika dan nilai karakter yang terdapat dalam permainan tradisional Jawa Ganjilan. Konsep matematika yang ditemukan adalah konsep penjumlahan, konsep pengurangan, konsep perkalian, konsep perbandingan bilangan, konsep pecahan, konsep modal dan hasil, dan konsep untung-rugi. Nilai-nilai yang terkandung dalam permainan tradisional Jawa Ganjilan adalah karakter sabar, mengasah kemampuan emosi, menaati aturan, percaya diri, mandiri, dan sportif. Berdasarkan temuan tersebut, permainan tradisional Jawa Ganjilan dapat dijadikan sebagai sumber belajar matematika dan bermanfaat dalam mengembangkan karakter. AbstractThis study aims to describe the results of the exploration of mathematical concepts and character values in a traditional game known as “Jawa Ganjilan”. This is qualitative research with an ethnographic approach. The ethnographic stages in this study were determining the research subjects, conducting observations and interviews during the game, taking notes on the results, and analyzing the findings. Data collection was carried out through library research, videos, observations, and in-depth interviews. Data analysis techniques were carried out through data reduction, data presentation, and concluding. Data analysis was carried out to identify the mathematical concepts and character values contained in the traditional Javanese odd game. The mathematical concepts found are the concept of addition, the concept of subtraction, the concept of multiplication, the concept of a number comparison, the concept of fractions, the concept of capital and returns, and the concept of profit and loss. The values contained in the traditional Javanese game of oddity are character patience, honing emotional abilities, obeying rules, self-confidence, independence, and sportsmanship. Based on these findings, traditional Javanese odd games can be used as a source of learning mathematics and are useful in developing character.
Co-Authors Abadi , Agus Maman Abdur Rahman As’ari Adawiya, Robiatul Afifah Nur Indah Sari Ai Sadidah Amirah Andini, Anggia Dwi Angga Kristiyajati Aoyama, Kazuhiro Aprisal Aprisal, Aprisal Ardiyaningrum, Martalia Arma Wangsa ARTHUR BAKKER Aryani, Anggi Erna Asri Fauzi Ayu Arfiana Caturiyati Caturiyati Cholis Sa’dijah Diah Ayu Indraningtias Diena Frentika Dyahsih Alin Sholihah Edy Bambang Irawan Eka Zuliana Eki Rahmad Elmaini Elmaini Elmaini Elmaini, Elmaini Ernawati Ernawati Erni Puji Astuti Fadlila, Nindy Fanggidae, Janrino Junus Rivaldi Farida Hanum Fauzi, Asri Fevi Rahmawati Suwanto Firdaus, Andi Mulawakkan Fitri Yana Habibullah, Habibullah Hajra Yansa Heri Retnawati Heru Tri Novi Rizki Hilmi, Irfan Idza Nudia Linnusky Ivan Luthfi Ihwani, Ivan Luthfi Ivone Marlinda Julham Hukom Kamsurya, Marwa Astriani Kazuhiro Aoyama Khasanah Nur Hidayah Lintuman, Aryadi Maria Evarista Oktaviane Barut Barut Marsigit Marsigit Marwa Astriani Kamsurya MICHIEL DOORMAN Michiel Doorman MICHIEL DOORMAN, MICHIEL Mohamad Salam Mujiyem Sapti Mujiyem Sapti Muqoddaroh, Fadillatul Naing, Ince Rezky Neni Ferli Yanti Nurhayati, Elis PAUL DRIJVERS Puad, Nisrina Fauziyyah Purwanto Purwanto Purwanto Purwanto Purwanto Putri, Lilis Risma Raden Rosnawati Rahayu Condro Murti Rahma Dewi Indrayanti Rahman, Gusti Arviana Rahmawati Suwanto, Fevi Rahmi Ramadhani Riawan Yudi Purwoko Rino Richardo Rino Richardo Rizqona Maharani, Rizqona Rosalia Hera Novita Sari Safira, Silvie Salido, Achmad Santos, Mariano Dos Simanjuntak, Sinta Dameria Siti Irene Astuti Dwiningrum Siti Mufidah Suci Pawening Gati Sugiman Sugiman Sugiman Sugiman Sugiman Sugiman Sugiman Susiswo Suwanto, Fevi Rahmawati Tista Sugiarti Tuharto, Tuharto Ulfa, Charina Vevi Arini Azizatus Sufaidah Wahyu Setyaningrum Wahyudi, Andi Widi Astuti Winda Nur Akhadya Wiwik Haryanti Yusuf Rahmat Setyawan Zea Zisman Usman