PENGARUH MODEL PEMBELAJARAN BERBASIS PROYEK TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS VI SDN 071020 AWA’AI DITINJAU DARI SELF CONFIDENCE

Abstract

This study was motivated by the low level of students' mathematics learning outcomes and self-confidence, indicating the need for an innovative instructional approach that enhances both cognitive and affective aspects of learning. One alternative is the Project-Based Learning (PjBL) model, which emphasizes students' active engagement through authentic projects to solve real-world problems and produce tangible products. This study aimed to: (1) examine the effect of the Project-Based Learning model on students' mathematics learning outcomes; (2) analyze the effect of self-confidence on students' mathematics learning outcomes; and (3) investigate the interaction between the Project-Based Learning model and self-confidence on the mathematics learning outcomes of sixth-grade students at SDN 071020 Awa’ai in the topic of cubes and rectangular prisms. This study employed a quantitative approach using a quasi-experimental method with a 2 × 2 factorial design. Data were analyzed using a Two-Way Analysis of Variance (Two-Way ANOVA) with unequal cell sizes after satisfying the assumptions of normality and homogeneity. The findings revealed that: (1) the Project-Based Learning (PjBL) model had a significant positive effect on students' mathematics learning outcomes, with students taught using PjBL achieving better results than those taught using the conventional learning model; (2) self-confidence had a significant effect on students' mathematics learning outcomes; and (3) there was a significant interaction between the learning model and self-confidence in influencing students' mathematics learning outcomes. These findings indicate that the implementation of the Project-Based Learning model, supported by students' self-confidence, is effective in improving mathematics learning outcomes.