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All Journal Jurnal Pendidikan dan Pengajaran Lentera Pendidikan : Jurnal Ilmu Tarbiyah dan Keguruan Math Didactic: Jurnal Pendidikan Matematika PRISMA Juring (Journal for Research in Mathematics Learning) Jurnal Pendidikan Matematika (JUDIKA EDUCATION) M A T H L I N E : Jurnal Matematika dan Pendidikan Matematika GAUSS: Jurnal Pendidikan Matematika Pekemas IPI Garut Mosharafa: Jurnal Pendidikan Matematika Plusminus: Jurnal Pendidikan Matematika ELIPS: Jurnal Pendidikan Matematika JES-MAT (Jurnal Edukasi dan Sains Matematika) caXra: Jurnal Pendidikan Sekolah Dasar Jurnal Inovasi Pembelajaran Matematika: PowerMathEdu (PME) Indonesian Journal of Community Empowerment TOFEDU: The Future of Education Journal Intellectual Mathematics Education Jurnal Pendidikan Matematika Universitas Lampung
Tina Sri Sumartini, Tina Sri
Institut Pendidikan Indonesia Garut
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Languange, Linguistic, Communication & Media Mathematics Public Health Social Sciences Other

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Training on Preparing Classroom Action Research Reports for Middle School and High School Teachers Sumartini, Tina Sri; Afriansyah, Ekasatya Aldila; Asyari, Lutfi; M, Liliek Teja; Fera, Fera; Dedi, Dedi; Hamid, Hamid
Indonesian Journal of Community Empowerment (IJCE) Vol 4 No 01 (2023): Indonesian Journal of Community Empowerment (February)
Publisher : Fakultas Kewirausahaan Universitas Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35899/ijce.v4i01.699

Abstract

Teachers must carry out Classroom Action Research (CAR) as an effort to solve problems experienced during learning so that effective solutions are obtained. The results of CAR should be published as a form of accountability for research results and as a reference for determining innovative policies in the field of education. Therefore, it is necessary to conduct training for teachers to publish the results of CAR in national journals. This training is carried out online by providing material and also guidance in the preparation of articles resulting from CAR. The training was attended by 30 teachers in Garut district. The result of this training is that teachers are motivated to make CAR and publish the results in national journals. It is hoped that further training can specifically provide guidance on submitting articles to national journals and can be carried out offline.
Hubungan Self-efficacy dan Kemampuan Representasi Matematis Siswa dalam Menyelesaikan Soal Open-Ended Firmawatie, Ai Ahnae; Sumartini, Tina Sri; Sundayana, Rostina
GAUSS: Jurnal Pendidikan Matematika Vol. 8 No. 2 (2025)
Publisher : Universitas Serang Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30656/gauss.v8i2.11747

Abstract

Penelitian ini bertujuan untuk mengetahui sejauh mana hubungan antara self-efficacy dan kemampuan representasi matematis siswa dalam menyelesaikan soal open-ended. Jenis penelitian ini adalah penelitian kuantitatif dengan correlational design. Populasi dan sampel penelitian ini siswa kelas XI-12 SMAN 19 Garut sebanyak 28 orang. Teknik pengambilan sampel menggunakan sampling jenuh. Instrumen yang digunakan adalah lembar angket dan tes. Berdasarkan hasil uji statistik yaitu uji Rank-Spearman didapat nilai signifikansi sebesar 0,036 < 0,05 yang artinya terdapat hubungan yang signifikan antara self-efficacy dan kemampuan representasi matematis siswa dalam soal open-ended dengan koefisen korelasi sebesar 0,397 yang menunjukkan korelasi yang cukup lemah. Hasil ini dipengaruhi beberapa faktor diantaranya: (1) Kemampuan representasi matematis juga bergantung pada penguasaan konsep dan pengalaman belajar sebelumnya. (2) self-efficacy saja tidak cukup untuk menjamin kemampuan representasi, dibutuhkan pula keterampilan metakognitif dan strategi pemecahan masalah. (3) Dukungan guru bisa mengoptimalkan kontribusi self-efficacy terhadap kemampuan representasi matematis siswa dalam menyelesaikan soal open-ended.
Enhancing Literacy, Numeracy, and Mathematics Learnig Motivation Using the Problem-Based Learning Model Sumartini, Tina Sri; Wahyuni, Widi
Mosharafa: Jurnal Pendidikan Matematika Vol. 14 No. 4 (2025): October
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/mosharafa.v14i4.2497

Abstract

Kemampuan literasi numerasi dipengaruhi oleh berbagai faktor, salah satunya adalah rendahnya minat belajar siswa yang dapat menurunkan motivasi dan selanjutnya berdampak pada kemampuan berpikir kritis serta pemecahan masalah matematis. Penelitian ini bertujuan untuk mengimplementasikan model Problem-Based Learning (PBL) guna meningkatkan literasi, numerasi, dan motivasi belajar matematika siswa. Penelitian ini menggunakan desain Penelitian Tindakan Kelas yang terdiri atas tiga siklus, masing-masing meliputi tahap perencanaan, pelaksanaan, observasi, dan refleksi. Modul ajar, lembar kerja peserta didik, dan instrumen evaluasi dikembangkan dan disempurnakan secara sistematis pada setiap siklus. Subjek penelitian adalah 25 siswa kelas IX-E SMPN 4 Tarogong Kidul yang dipilih melalui teknik purposive sampling. Pengumpulan data dilakukan melalui tes tertulis, observasi, dan angket. Analisis data mengombinasikan statistik deskriptif dalam bentuk persentase dan analisis deskriptif kualitatif, yang meliputi reduksi data, penyajian data secara sistematis melalui narasi dan tabel, serta penarikan kesimpulan. Hasil penelitian menunjukkan adanya peningkatan yang substansial pada kemampuan literasi dan numerasi siswa, dengan 68% siswa menunjukkan perkembangan yang terukur disertai peningkatan motivasi belajar. Meskipun capaian tersebut belum sepenuhnya memenuhi indikator keberhasilan yang ditetapkan sebesar 70%, peningkatan yang diperoleh menunjukkan bahwa penerapan model PBL memberikan dampak yang bermakna dan positif terhadap pembelajaran matematika siswa. Numeracy literacy skills are influenced by various factors, one of which is low student interest, which can reduce learning motivation and subsequently affect critical thinking and mathematical problem-solving abilities. This study aims to implement the Problem-Based Learning (PBL) model to enhance students’ literacy, numeracy, and motivation in learning mathematics. The research employed a classroom action research design consisting of three cycles, each including planning, implementation, observation, and reflection stages. Teaching modules, student worksheets, and evaluation instruments were systematically developed and refined in each cycle. The subjects were 25 students from class IX-E at SMPN 4 Tarogong Kidul, selected through purposive sampling. Data were collected using written tests, observations, and questionnaires. Data analysis combined descriptive statistics in the form of percentages and qualitative descriptive analysis, including data reduction, systematic presentation of findings through narratives and tables, and conclusion drawing. The results showed a substantial improvement in students’ literacy and numeracy skills, with 68% of students demonstrating measurable progress, accompanied by increased learning motivation. Although the outcome did not fully reach the predetermined 70% success indicator, the observed gains indicate that the implementation of the PBL model had a meaningful and positive impact on students’ mathematics learning.
The Development of Wizer.Me-Based Student Worksheets to Improve Students’ Mathematical Creative Thinking Ability Sugiarti, Sri; Luritawaty, Irena Puji; Sumartini, Tina Sri
Mathline : Jurnal Matematika dan Pendidikan Matematika Vol. 11 No. 1 (2026): Mathline : Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas Wiralodra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31943/mathline.v11i1.1091

Abstract

This study aimed to develop Wizer.Me-based Student Worksheets (LKS) on trigonometric functions to enhance senior high school students’ mathematical creative thinking skills. The research employed a Research and Development (R&D) method using the ADDIE model, which consists of the analysis, design, development, implementation, and evaluation stages. The developed product was validated by a subject-matter expert and a media expert, and subsequently tested for its practicality and effectiveness. The trial subjects consisted of two mathematics teachers and nine twelfth-grade students. The validation results indicated that the worksheets were categorized as highly valid, with a percentage of 89.5% from the subject-matter expert and 85% from the media expert. The practicality test showed that the worksheets were considered highly practical, with an average percentage of 88.5%. The effectiveness test, based on students’ response questionnaires, indicated a highly effective category with a percentage of 87.33%. In addition, the results of the mathematical creative thinking skills test demonstrated improvement, with the N-gain scores falling within the moderate to high categories, particularly on the indicators of fluency and elaboration. Based on these findings, it can be concluded that the developed Wizer.Me-based Student Worksheets are valid, practical, and effective in improving students’ mathematical creative thinking skills. Therefore, the Wizer.Me-based worksheets are feasible to be used as an alternative instructional medium in mathematics learning, particularly on trigonometric function topics at the senior high school level.Bottom of Form
Meningkatkan Kemampuan Matematis Siswa Melalui Pengembangan LKS Berbantuan Wayground dalam Pembelajaran Cheerful Inquiry Kurniati, Nia; Luritawaty, Irena Puji; Sumartini, Tina Sri
Jurnal Pendidikan Matematika : Judika Education Vol. 9 No. 1 (2026): Jurnal Pendidikan Matematika: Judika Education
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/a6b9q664

Abstract

This study focuses on the development of Student Worksheets assisted by Wayground, which are utilized as supporting media in Cheerful Inquiry learning to improve junior high school students’ mathematical communication skills. The research method employed was Research and Development (R&D) using the ADII model. The research subjects consisted of 10 students from one junior high school in Garut Regency. The feasibility of the product was evaluated by media experts and material experts, as well as through small-group, medium-group, and large-group trials. The results of expert evaluations indicate that the design of the Wayground-assisted interactive worksheets falls into the good to very good category, with user assessment scores exceeding 80. The effectiveness test shows an N-Gain value of 0.81, which is classified as high. This indicates that the developed Wayground-supported student worksheets are effective in improving students’ mathematical communication skills. This media provides opportunities for students to develop mathematical communication skills through writing, drawing, and expressing mathematical concepts, while also creating an enjoyable and relatively conducive learning environment. Based on the research findings, the developed Wayground-assisted student worksheets are declared feasible for use in mathematics learning.   Keywords: Wayground; Cheerful Inquiry; Student Worksheets; Mathematical Communication Skills
Canva Site-Based Learning Media Development on Polyhedrons to Improve Mathematical Representation Skills Lastri Asmara Kurnia Ningsih; Tina Sri Sumartini; Irena Puji Luritawaty
Plusminus: Jurnal Pendidikan Matematika Vol. 5 No. 3 (2025): November
Publisher : Department of Mathematics Education Program IPI Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31980/plusminus.v5i3.3603

Abstract

Penelitian ini bertujuan untuk mengembangkan media pembelajaran berbasis Canva Site pada materi Bangun Ruang Sisi Datar serta menganalisis tingkat validitas, kepraktisan, dan peningkatan kemampuan representasi matematis murid. Canva Site ini berbentuk microsite yang dirancang untuk menyajikan pembelajaran secara menarik dan mudah diakses dalam satu halaman. Metode yang digunakan adalah penelitian dan pengembangan (Research and Development) dengan model ADDIE yang meliputi tahap analisis, desain, pengembangan, implementasi, dan evaluasi. Subjek penelitian melibatkan 20 murid kelas VIII di salah satu SMP di Kabupaten Garut. Instrumen penelitian terdiri atas angket validasi ahli materi dan media, angket respons murid, serta tes pretes dan postes kemampuan representasi matematis. Hasil penelitian menunjukkan bahwa media pembelajaran berbasis Canva Site memiliki tingkat validitas sangat tinggi, dengan persentase validasi materi sebesar 89,95% dan validasi media sebesar 90,17%. Tingkat kepraktisan media berada pada kategori sangat praktis dengan persentase 84%. Selain itu, kemampuan representasi matematis murid mengalami peningkatan dengan nilai rata-rata gain sebesar 0,40 yang termasuk kategori sedang. Hasil ini menunjukkan bahwa media pembelajaran berbasis Canva Site layak dan efektif digunakan dalam pembelajaran matematika. This study aimed to develop Canva Site-based learning media for the topic of polyhedrons and to examine its validity, practicality, and effectiveness in improving students’ mathematical representation ability. This Canva Site takes the form of a microsite designed to present learning content in an engaging and easily accessible single page. The research employed a Research and Development approach using the ADDIE model, which consists of analysis, design, development, implementation, and evaluation stages. The participants were 20 eighth-grade students from a junior high school in Garut Regency. Data were collected through expert validation questionnaires for material and media, student response questionnaires, and pre-test and post-test instruments on mathematical representation ability. The results indicated that the developed Canva Site-based learning media achieved very high validity, with material validation reaching 89.95% and media validation 90.17%. The practicality level was categorized as very practical, with a percentage of 84%. Furthermore, students’ mathematical representation ability showed a moderate improvement, indicated by an average gain score of 0.40. These findings suggest that Canva Site-based learning media are valid, practical, and effective in enhancing students’ mathematical representation ability.
Co-Authors ., Juniawati ., Rubiah ., Yulkhaidir Abdulah, Agus Herman Agustina . Agustina, Tri Budi Aldi Hidayatuloh Anugrah, Yova Apriliani, Yosi Khosilam Apriyanti, Hilma Siti Nur Arnisya, Melinda Fahriani Asyari, Lutfi Azkiah, Firza Capriati, Zhesi Cici Nurulhaq Dedi Dedi Dian Mardiani Dian Mardiani, Dian Dian Rahadian, Dian Ejen Jenal Mutaqin Ekasatya Aldila Afriansyah Eko Fajar Suryaningrat Fera, Fera Firdaus, Lulu Sabilal Firmawatie, Ai Ahnae Hamid Hamid Hana Hanipah Hanipah, Hana Indri Yani, Indri Irena Puji Luritawaty IYAM MARYATI Kusumaryono, Suyato Lastri Asmara Kurnia Ningsih M, Liliek Teja Maulana, Redi Mudzakin, Fikri Nabella Alani Nasrulloh, iman Nia Kurniati Nia Romdhonatu Sa’adah Nissa Nurul Azhar Nita Puspitasasri Noor, Yandhi Hendarsyah Nugraha, Regar Esa Nuraisah, Nisa Pebriani, Astria Purnamasari, Nahlika Puspitasari, Nitta Putri, Kamelia Reni Nuraeni Restu Rahmawati, Restu Robbani, Ilham Ali Rosidah, Nani Rostina Sunday Rostina Sundayana Sadikin, Nugraha Hasan Safitri, Lita Salma, Firyal Anan Sa’adah, Nia Romdhonatu Silfi Nurpadilah Silvia, Syifa Sri Sugiarti Sugandi, Tatan Sukanto Sukandar Madio Teni Sritresna Tri Budi Agustina Utami, Ihda Eisya Wahyuni, Widi Yeni Talia