VietTESOL International Convention 2025

Grounded in Self-Determination Theory, this study explores how Instagram Threads Voice Notes can support self-directed English-speaking learning among Vietnamese EFL freshmen. A one-group pre-test/post-test design was implemented over nine weeks in a Listening–Speaking 2 course. During the intervention period, students completed weekly asynchronous voice-based speaking tasks using Instagram Threads outside of class. Speaking performance was assessed through pre- and post-tests rated with an VSTEP rating scale, focusing on fluency, pronunciation, and vocabulary use. At the end of the intervention, participants completed a structured questionnaire measuring key self-directed learning behaviors, including goal setting, planning, self-monitoring, and independent speaking practice. Findings revealed that learners showed observable improvements in speaking performance and reported increased autonomy in managing their own oral language development. The use of Threads Voice Notes appeared to satisfy learners' psychological needs for autonomy and competence, fostering sustained engagement in self-directed learning. Limitations of the study include the absence of a control group, the short intervention period, and reliance on self-reported data. Future research is recommended to extend the duration, incorporate comparative group designs, and further examine how social media tools can be integrated into language learning to promote long-term autonomous speaking development.