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Working memory (WM) has been extensively studied as a cognitive factor influencing second language acquisition (SLA), but many studies treat it as a static, trait-like capacity. This approach provides limited insight into how WM works across different stages of development, proficiency levels, and learning contexts. This article combines theoretical and empirical research on working memory in SLA from a dynamic and developmental perspective, analyzing how the influence of WM varies over time and interacts with other cognitive and contextual factors. Referencing Baddeley's multicomponent model, complex dynamic systems theory, and longitudinal research, this article examines evidence regarding the role of WM in various language domains, including vocabulary learning, grammar processing, and language production. It also investigates how WM works differently at various proficiency levels and developmental periods, from childhood to adulthood. Evidence suggests that WM plays a very strong role in the early stages of learning when processing is effortful and controlled, but becomes less central as linguistic knowledge becomes automated. The relationship between WM and SLA appears to be bidirectional, with sustained language learning contributing to the development of specific WM components, particularly executive control. The influence of WM varies significantly based on task characteristics, teaching context, and learner profiles. Understanding WM as a dynamic resource rather than a fixed constraint has important pedagogical implications. Instructions that manage cognitive load, provide support, and encourage metacognitive awareness can help learners with diverse cognitive profiles. A developmental approach in WM research requires longitudinal designs and task-aligned methodologies to capture changes over time, thereby advancing theory and practice in SLA.

This study explores the profound impact of teacher personality competence on student character formation through a descriptive narrative lens grounded in the sociology of education. Education is not merely a technical transfer of knowledge but a complex social process where the teacher acts as a pivotal moral agent and role model. By synthesizing classical sociological paradigms—Functionalism, Conflict Theory, and Symbolic Interactionism—with contemporary empirical evidence, this article argues that a teacher's personality is a dynamic social construct that shapes the "hidden curriculum" and the overall school climate. The narrative analysis reveals that traits such as empathy, integrity, and social justice are not just individual attributes but essential tools for moral socialization and the internalization of collective values. The study finds that teachers who embody these virtues foster a sense of social belonging and ethical responsibility in students, effectively bridging the gap between individual identity and societal expectations. The article concludes that strengthening teacher personality competence is a strategic imperative for developing a resilient and morally grounded generation, recommending integrated professional development that emphasizes the teacher's role as a moral authority in the 21st-century social landscape.