This study was prompted by the inadequate communication confidence of fifth-grade students at SD Negeri 2 Loktabat Selatan during Physical Education instruction. Preliminary observations indicated that merely 32% of pupils engaged in classroom discourse. This study sought to enhance students' communicative boldness by employing a growth mindset approach along with deep learning and Problem-Based Learning (PBL). The study employed collaborative Classroom Action Research executed in two cycles. The participants comprised 28 students from class Vc during the 2025/2026 school year. Data were gathered by observation, performance assessments, and recording, thereafter analysed employing comparative descriptive methods. The findings indicated a notable enhancement in students' communication confidence, rising from 32% in the pre-cycle to 54% in cycle I, and achieving 79% in cycle II. The findings suggest that the growth mindset approach effectively enhances students' communicative boldness in Physical Education. The learning process evolved to be more active, collaborative, and interactive.
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