["TESOL Quarterly, EarlyView. ", "\nAbstract\nAmid growing interest in multilingual pedagogies, translanguaging has increasingly been positioned as a response to monolingual teaching norms. Yet empirical accounts of what pedagogical translanguaging looks like in everyday classrooms—particularly in teaching English to young learners—remain limited. At the same time, although storytelling occupies a central place in young learner pedagogy, little research has examined how teachers mobilize linguistic and semiotic resources during storytelling lessons. Addressing both gaps, this study draws on the pedagogical translanguaging framework and the Dynamic Model of Multilingualism to investigate the evolving practices of eight preservice English teachers (PSTs) in Turkish state primary schools. The data set comprises 32 video‐recorded storytelling lessons over 8 weeks and follow‐up in‐depth interviews. Findings show that PSTs initially drew on shared linguistic repertoires to manage classroom interaction and scaffold story comprehension. Over time, however, these practices shifted, and translanguaging use decreased as PSTs increasingly employed multimodal strategies, including gesture, visual supports, and realia. Findings suggest how teachers' mediational practices became increasingly adaptive, with verbal translanguaging becoming more selective alongside increased use of multimodal mediation. The study contributes classroom‐based evidence of how translanguaging evolves over time and offers implications for multilingual pedagogy and teacher education in young learner contexts.\n"]