The Influence of Initial Mathematical Ability and Numbered Head Together Type Cooperative Learning Model on Mathematical Communication Ability and Self Efficacy

Jannah, Fathul
Simamora, Elmanani
Syahputra, Edi

Jurnal Perspektif
Vol 9, No 1 (2025): Jurnal Perspektif: Volume 9 Nomor 1 Tahun 2024 (Article in Press)

This study aims to determine:  The effect of initial mathematical ability on students' mathematical communication ability;  The effect of initial mathematical ability on students' self-efficacy; The effect of cooperative learning model type numbered heads together and direct learning on students' mathematical communication ability; The effect of cooperative learning model type numbered heads together and direct learning on students' self-efficacy; The interaction between initial mathematical ability and learning model on mathematical communication ability; The interaction between initial mathematical ability and learning model on self-efficacy. This study is a quantitative study with a quasi-experiment. The sample of this study was 62 students of MAN 1 Medan class X, with a two-way ANOVA analysis. The results of the study showed that:  There is an influence of initial mathematical abilities on students' mathematical communication abilities; There is an influence of initial mathematical abilities on students' self-efficacy;There is an influence of the cooperative learning model type numbered heads together and direct learning on students' mathematical communication abilities; There is an influence of the cooperative learning model type numbered heads together and direct learning on students' self-efficacy; There is no interaction between initial mathematical abilities and learning models on mathematical communication abilities; There is no interaction between initial mathematical abilities and learning models on self-efficacy.