Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal Teorema: Teori dan Riset Matematika Journal of Didactic Mathematics
Resy Nirawati
Institut Sains dan Bisnis Internasional Singkawang
Education Mathematics

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Enhancing students’ mathematical literacy ability through the implementation of the Needham learning model assisted by GeoGebra Resy Nirawati; Fitriani Fitriani
Journal of Didactic Mathematics Vol 7, No 1 (2026): April
Publisher : Mahesa Research Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34007/jdm.v7i1.2726

Abstract

This study investigates the impact of limited learning models, conventional instructional methods, and minimal utilization of interactive technology on low mathematical literacy. It highlights a research gap in integrating the Needham model with GeoGebra for teaching linear equations. The study’s objective was to compare the mathematical literacy improvement of students taught with the Needham model supported by GeoGebra versus those receiving conventional instruction. Additionally, it aimed to assess the implementation of the Needham model assisted by GeoGebra. A quasi-experimental design with a nonequivalent pretest–posttest control group was employed. The study’s population comprised 124 eighth-grade students at State Junior High School 8 Singkawang. Purposive sampling was used to select class VIII A (25 students) as the experimental group and class VIII B (25 students) as the control group. Data analysis techniques utilized included normalized gain, t-test, and implementation percentage. The results revealed that the experimental group (N-Gain = 0.65) outperformed the control group (0.32), demonstrating a statistically significant difference (tcount = 3.243 > ttable = 2.01, p < 0.05). This indicates that students taught with the Needham model supported by GeoGebra exhibited greater improvement in mathematical literacy compared to those taught with conventional methods. The implementation of the Needham model assisted by GeoGebra was categorized as very good, exceeding the 90% threshold. Specifically, 92.37% of students achieved the desired level in the first session and 96.85% in the second session. The study concludes that the Needham model assisted by GeoGebra significantly enhances students’ mathematical literacy in learning systems of linear equations in two variables.
Pengaruh Model Student Facilitator and Explaining (SFE) Terhadap Kemampuan Komunikasi Matematis Siswa Syalma Nazahwa Oktafialda; Safrihady Safrihady; Resy Nirawati
Teorema: Teori dan Riset Matematika Vol 10, No 2 (2025): September
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/teorema.v10i2.19611

Abstract

Komunikasi matematis memiliki peranan penting dalam pembelajaran matematika karena dengan kemampuan komunikasi siswa dapat menyatakan ide atau gagasan matematisnya, namun pada kenyataannya komunikasi matematis siswa masih rendah. Salah satu alternatif penyelesaian masalah tersebut adalah dengan menerapkan model Student Facilitator and Explaining (SFE). Penelitian ini bertujuan: 1) Mengetahui apakah terdapat pengaruh model pembelajaran Student Facilitator and Explaning (SFE) terhadap kemampuan komunikasi matematis siswa kelas V SDN 23 Singkawang, 2) Mengetahui seberapa besar pengaruh model Student Facilitator and Explaning (SFE) terhadap kemampuan komunikasi matematis siswa kelas V SDN 23 Singkawang, 3) Mengetahui bagaimana keterlaksanaan model Student Facilitator and Explaning (SFE) terhadap kemampuan komunikasi matematis siswa kelas V SDN 23 Singkawang. Jenis penelitian ini adalah kuantitatif dengan desain The Nonequivalent Posttest-Only Control Group. Sampel penelitian terdiri dari dua kelompok: kelas V A (eksperimen) dan kelas V B (kontrol), masing-masing terdiri dari 25 siswa dipilih dengan teknik purposive sampling. Teknik pengumpulan data menggunakan soal essay dan lembar observasi. Teknik analisis data menggunakan uji independent sample t-test, uji effect size, dan uji rata-rata. Hasil penelitian menunjukkan: 1)Terdapat pengaruh model Student Facilitator and Explaining (SFE) terhadap kemampuan komunikasi matematis siswa kelas V SDN 23 Singkawang, dibuktikan dengan uji Independent Sample T-test diperoleh  sebesar 7,51 dan  sebesar 1,67, 2) Model Student Facilitator and Explaining (SFE) berpengaruh besar terhadap kemampuan komunikasi matematis siswa kelas V SDN 23 Singkawang, dibuktikan dengan uji effect size sebesar 2,24, 3) Keterlaksanaan model Student Facilitator and Explaining (SFE) menunjukkan skor rata-rata baik, dengan rata-rata keseluruhan sebesar 89.
Co-Authors Fitriani Fitriani Safrihady Safrihady Syalma Nazahwa Oktafialda