PENGARUH MODEL GUIDED DISCOVERY LEARNING TERHADAP KEMAMPUAN REPRESENTASI MATEMATIS PESERTA DIDIK SMP DITINJAU DARI SELF EFFICACY

This study rooted from evidence indicating that students’ mathematical representation ability is still relatively low. The study aims to determine whether the implementation of the Guided Discovery Learning model influences students’ mathematical representation ability when examined in relation to self-efficacy. This study employed an experimental method using a factorial experimental design. The population consisted of all eighth-grade students at SMP Negeri 2 Peranap in the 2025/2026 academic year. The sample was selected through cluster random sampling, with Class A assigned as the control group and Class B as the experimental group. Data were collected through tests, questionnaires, and observation. The research instruments included a mathematical representation ability test, a self-efficacy questionnaire, and observation sheets for teacher and student activities. The data were analyzed using a two-way ANOVA. The findings indicate that: (1) the Guided Discovery Learning model did not have a significant effect on students’ mathematical representation ability; (2) self-efficacy had a significant effect on students’ mathematical representation ability; and (3) there was no significant interaction effect between the Guided Discovery Learning model and self-efficacy on students’ mathematical representation ability. It is therefore concluded that the Guided Discovery Learning model did not significantly influence students’ mathematical representation ability in relation to self-efficacy at SMP Negeri 2 Peranap.