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Nurfadilah Siregar

Mathematics Education Study Program, FKIP, Universitas Tanjungpura, Prof. Dr. H. Hadari Nawawi Street, Pontianak

Author-ID : 703508

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Effectiveness of Teams Games Tournament Cooperative Learning with Wordwall Educational Games on Similarity Saragih, Grace Angel Rhena; Mirza, Ade; Siregar, Nurfadilah; Mikraj, Hamdani; Budhysatrya, Dian Ahmad
SJME (Supremum Journal of Mathematics Education) Vol 10 No 1 (2026): Supremum Journal of Mahematics Education
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Singaperbangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35706/sjme.v10i1.13178

This research seeks to investigate the effectiveness of integrating the TGT cooperative learning model with Wordwall-based educational games in enhancing students' conceptual understanding of similarity at SMP Abdi Agape Pontianak. A pre-experimental approach was adopted in this study, utilizing a one-group pretest-posttest design, with 28 Grade VII A students selected as the sample. The instruments consisted of tests, questionnaires, and observation sheets, generating data in the form of test results, questionnaire responses, and students' levels of engagement obtained from the observation sheets. The data were analyzed using descriptive and inferential statistical techniques. The findings indicated that the implementation of this approach was effective, as it met the predetermined effectiveness indicators, namely students mathematics learning outcomes reached the KKTP of ≥ 65, the classical mastery level was , the improvement in learning outcomes was , student responses met the positive criteria of , and learning activities met the active criteria of . This effectiveness is supported by hypothesis testing results where the average learning outcome was > 64,9, classical completeness was > 74,9, average learning gain was > 0.3 or moderate category, student responses rated as very positive at 81,47%, and student activity was rated as very active at 95%. This study shows that the TGT cooperative learning model assisted by Wordwall educational games is effective because it meets all indicators of learning effectiveness, including minimum mathematics learning outcomes, classical mastery, meaningful learning improvement, positive student responses, and student activity during the learning process.

Developing STEM integrated analysis geometry learning materials through digital visualization and e-learning platforms Fitriawan, Dona; Siregar, Nurfadilah; Hartoyo, Agung; Sulistyowati, Endar
Al-Jabar: Jurnal Pendidikan Matematika Vol 17 No 1 (2026): Al-Jabar : Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v17i1.29388

Purpose: This study aims to develop STEM-based Analytical Geometry teaching materials integrated with digital visualization tools and e-learning platforms. The goal is to enhance students’ conceptual understanding, spatial visualization, and problem-solving skills while addressing the limitations of traditional instruction, particularly in connecting abstract concepts to real-world applications. Method: A research and development approach was employed using the ADDIE model (analysis, design, development, implementation, and evaluation). The study involved 93 fifth-semester undergraduate mathematics education students. Data were gathered through observations, interviews, needs analysis questionnaires, expert validation, learning outcome tests, and student feedback. The teaching materials included various digital tools such as GeoGebra, PhET, Maple, Tinkercad, and Google Colab, supporting STEM-based learning and engineering projects. Quantitative data were analyzed using descriptive statistics and gain score analysis, while qualitative data were used to interpret the implementation process. Findings: The developed materials achieved a high validity score (4.58/5). The implementation through e-learning led to a 36.6% improvement in student learning outcomes. Student feedback was overwhelmingly positive, with a score of 4.63, particularly in visual clarity and ease of use. Engineering projects, such as robot path design, enhanced students’ spatial reasoning and facilitated concept transfer. Significance:This study provides evidence that integrating STEM, digital visualization, and e-learning significantly enhances the effectiveness of analytical geometry learning, offering practical implications for innovative mathematics education technologies aligned with Industry 4.0 and Society 5.0.

Design and validation of a PISA oriented instructional module for linear functions aligned with the merdeka curriculum Eka, Firmina; Suratman, Dede; Rifat, Mohammad; Siregar, Nurfadilah; Hamdani
Al-Jabar: Jurnal Pendidikan Matematika Vol 17 No 1 (2026): Al-Jabar : Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v17i1.29709

Purpose: This study aims to design and validate a PISA-oriented instructional module for linear functions aligned with the Learning Outcomes of the Merdeka Curriculum. Method: This study employed a qualitative educational design research approach through document analysis and expert validation. The design process was based on an analysis of the Merdeka Curriculum Learning Outcomes (Phase D), the PISA 2022 Mathematics Framework, and relevant linear function materials. The instructional module was developed iteratively and validated in two cycles by two mathematics education lecturers and one junior high school mathematics teacher. Validation criteria covered content accuracy, pedagogical alignment, integration of PISA competencies, linguistic clarity, and instructional design quality. Findings: The needs analysis indicated that teachers did not yet possess structured PISA-based instructional modules. The first validation cycle highlighted the need to improve the clarity of learning objectives, interpretation-oriented tasks, activity differentiation, language consistency, and visual presentation. After systematic revisions, the second validation cycle confirmed that the module met feasibility standards across content, pedagogy, language, and instructional design aspects. Significance: This study provides a validated instructional module that bridges national curriculum demands and international mathematical literacy standards, offering a practical and theoretically grounded reference for integrating PISA-oriented learning into classroom instruction.

PEMBELAJARAN DISCOVERY TERBIMBING BERBANTUAN GEOGEBRA TERHADAP KEMAMPUAN PEMAHAMAN KONSEP FUNGSI EKSPONENSIAL DIKAJI DARI MOTIVASI BELAJAR Pratiwi, Eka; Suratman, Dede; Noviani, Evi; Hamdani, Hamdani; Siregar, Nurfadilah
JP2M (Jurnal Pendidikan dan Pembelajaran Matematika) Vol 12, No 1 (2026)
Publisher : Universitas Bhinneka PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29100/jp2m.v12i1.9181

This study aims to analyze the effect of guided discovery learning assistes by the GeoGebra application on students’ conceptual understanding of exponential functions, examined from the perspective of learning motivation in grade XI at SMA Santo Paulus Pontianak. The study employed a quantitative method with a pre-experimental design of the one group pretest-posttets. The subjects of this study consisted of 56 eleventh-grade students who were grouped into high, medium, dan low learning categories.The instruments used were a conceptual understanding test, a learning motivation questionnaire, and an interview guidelines. The results showed that 9 students were categorized as having high motivation, 35 students as medium motivation, and 12 students as low motivation. The test data indicate in increase in conceptual understanding score of exponential functions by 47,62 for the high-motivation group, 48,85 for the medium-motivation group, and 21,23 for the low-motivation group. Furthermore, the test data were analyzed using the Wilcoxon test for the overall data as well as for the high- and medium-motivation groups, while the paired sample t-test was applied for the low-motivation group. The results indicated that guided discovery learning assisted by GeoGebra had a significant effect on students’ conceptual understanding of exponential functions, with effect sizes categorized as very strong across all levels of learning motivation.

The Effect of PBL Integrated Education for Sustainable Development on Students' Mathematical Communication and Problem Solving Skills Puput, Puput; Yani T, Ahmad; Siregar, Nurfadilah; Verminus, Verminus
Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi Volume 14 Issue 1 April 2026
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/euler.v14i1.37346

This research adopted a pretest–posttest control group experimental design. The primary objective was to investigate the impact of implementing Problem-Based Learning (PBL) integrated with the Education for Sustainable Development (ESD) approach on students’ mathematical problem-solving abilities and mathematical communication skills within the context of matrix learning. The population consisted of all 11th-grade students at SMAN 8 Pontianak (N=280), with two classes selected through probability sampling as the experimental and control groups. Data were collected using essay tests, observations, and documentation, then analyzed using independent samples t-tests, Mann-Whitney tests, and effect size analyses. The findings indicated statistically significant differences between the experimental and control groups (p0.05). Specifically, the experimental group achieved a mean post-test score 20.21% higher than the control group in problem-solving and 36.41% higher in mathematical communication. Strong effect sizes (d=1.84 and r=1.34) further demonstrate that ESD-oriented PBL substantially improved students’ competencies compared to conventional methods.

Co-Authors Ade Mirza Afandi Afandi Afni, Nur Agatha Rinta Suhardi Agung Hartoyo Ahmad Yani ahmad yani Ahmad Yani T Andi Besse Tenriawaru Anggraini, Widia Apriliyanti, Ignasia Aripin Arnandi, Fikri Asep Nursangaji Asri, Sari Devi Awaluddin, Muhammad Risky Nur Bistari Budhysatrya, Dian Ahmad Cahya Gita Camila Damayanti Lestari, Wiwit Dede Suratman Deviana Deviana Dian Ahmad BS Dian Rahmawati Dona Fitrawan Dona Fitriawan Dwi Apriyani Dwi Apriyani, Dwi Edy Yusmin Eka Pratiwi Eka, Firmina Eka, Firmina Endar Sulistyowati Erlinawaty Simanjuntak, Erlinawaty Evi Noviani Farida Hendriani Febriani Meldi, Nadya Fikri Arnandi Fransiska Fransiska Fredi Ganda Putra Gunawan, Fransiskus Hendra Halini - Hamdani Hamdani . Hamdani Hamdani Hardiany, Desi Hendratmoko, Yayan Hendratmoko, Yayan Herlinda, Mega Herni Indriastuti Iis Aisyah Iis Aisyah Juwita, Viva Khomsatun Ni’mah Krisdiyanti, Iis Lestari Pasaribu, Revi Luhur Wicaksono Mardian, Fauzy Marianus Hengki Marlinda Marlinda Mega Herlinda Meldi, Nadia Febriani Meldi, Nadya Febriani Metia Novianti Mikraj, Hamdani Mohamad Rif'at Mohamad Rif'at mohamad rifat Mohamad Rif’at Mohamad Rif’at Much Nasyrullah Muhammad Afif Munaldus Munaldus . Nabila Muthia Ayu Nani Ratnaningsih Ni'mah, Khomsatun Nur Afni Nur Awaluddin, Muhammad Risky Nuratifah, Stefania Nurhasanah siregar Nurhasanah Siregar . Nurhayati Nurhayati Pajarudin, Kurniadi Pasaribu, Revi Lestari Permanda, Saul Prayoga, Ananda Puput, Puput Putra, Tegar Ramadiansyah Rachmat Sahputra Rachmat Saputra Rahmawati, Dian Ri'fat, Mohamad Rianto, Vina Muthmainna Rif'at, Mohammad Rifat, Mohammad Rif’at, Mohamad Rif’at, Mohammad Rinda Kusmayanti Roisah, Siti Rostina Rostina Runisah, Runisah Rustam Rustam S, Nadiyah Amanati Saetban, Iche Imelda Saputra, Rachmat Saragih, Grace Angel Rhena Septiza Shinta Herawati, Lely silvia sayu - Sudiansyah, Sudiansyah Sugiatno . Sugiatno Sugiatno Sumarno, Mahmuda Syafitri, Kintan Salsabila Hasria Syaras, Arfina Sukma T, Ahmad Yani T, Ahmad Yani T., Ahmad Yani Tambunan, Muhammad Al Azhari Theresia Theresia Tomo, Tomo Verminus, Verminus Wahyu Anggraini, Wahyu Winarji, Agus Wiwit Artika Yani T, Ahmad Yani. T, Ahmad Yulis Jamiah Yulita Molliq Rangkuti Yuni Apriani Zaiturrahmah, Zaiturrahmah Zubaidah R Zubaidah R Zubaidah R, Zubaidah Zubatasari, Ayu Puspita

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