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PENGARUH MODEL TEAMS GAMES TOURNAMENT (TGT) BERBANTUAN MEDIA WORDWALL TERHADAP KOMUNIKASI MATEMATIS SISWA SEKOLAH DASAR Nita Andini; Erni Nurjanah; Dewi Fitriani; Fathir Arrahmi; Nurhasanah
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 03 (2026): Volume 11 No. 03, September 2026 Processed
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i03.63347

Abstract

Mathematical communication is one of the important competencies in learning mathematics. Observations at SDN Mandalasari show that the mathematical communication of fifth-grade students is still low because learning is still teacher-centered and the use of interactive learning media is not yet optimal. This study aims to analyze the effect of the Teams Games Tournament (TGT) cooperative learning model assisted by Wordwall media on elementary school students' mathematical communication skills in the topic of fraction multiplication. This study uses a quantitative approach with a quasi-experiment method and a Nonequivalent Control Group Design. The research population consisted of 63 fifth-grade students, including 31 students in the control class (VA) and 32 students in the experimental class (VB), using a saturated sampling technique. Data were collected through essay test instruments (pretest and posttest), then analyzed using descriptive statistical analysis, normality test, and homogeneity test, Independent Samples t-Test, and effect size (Cohen's d). The analysis results showed a significance value (Sig. 2-tailed) of 0.000 (< 0.05), proving that there is a significant effect of the TGT model assisted by Wordwall on students' mathematical communication. The average posttest score of the experimental class (87.81) was significantly higher than that of the control class (78.23). The effect size test produced a Cohen's d value of 1.329, which falls into the large effect category. Therefore, implementing the TGT model assisted by Wordwall media greatly contributes to improving elementary school students' mathematical communication skills. 
EFEKTIVITAS MEDIA SATE BILANGAN DAN KUBUS WARNA TERHADAP PENINGKATAN PEMAHAMAN KONSEP MATEMATIS SISWA SEKOLAH DASAR furqon al hadiq, muhamad; Nurjanah, Erni; Novia Vini Syafitri, Yoesrina; Gilang Mas Ramadhan
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 11 No. 02 (2026): Volume 11 Nomor 02, Juni 2026 Public
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v11i02.63971

Abstract

Conceptual understanding is a fundamental component of mathematics learning in primary education, and concrete manipulatives are often recommended to support students’ transition from real objects to symbolic representation. This study examines the effectiveness of two concrete learning media (Sate Bilangan and Colored Cubes) in facilitating students’ conceptual understanding of whole numbers and basic arithmetic operations. A quantitative approach was employed using a quasi-experimental design that involved a control group and two experimental groups. The test instruments were validated prior to use, and data were analyzed through prerequisite testing, analysis of variance, and post hoc procedures to identify differences between groups. The use of both concrete media led to improved conceptual understanding compared to conventional instruction. Sate Bilangan helped students recognize number structure through directed manipulative activities, whereas Colored Cubes strengthened understanding of place value and regrouping through spatial representation. Analysis of conceptual indicators showed that both media supported gains in areas related to representation and students’ ability to restate mathematical ideas. No meaningful difference in effectiveness was observed between the two media. Concrete manipulatives provide meaningful support for primary mathematics learning by guiding students through gradual conceptual development and reducing cognitive load when working with mathematical symbols. Future research may extend the scope of content, explore combinations of concrete and digital media, or investigate long-term retention and the role of mathematics anxiety in diverse classroom contexts.