This document discusses the major factors that affect second language learning. It begins by providing background on the author and their experience in ESOL teaching. Several influences on the author's practice are then mentioned, including researchers in the field. The document goes on to discuss the idea for the author's inquiry, which is to identify factors that affect second language learning. These factors include levels of language proficiency in the first language, motivation to learn the second language, and support from ESOL teachers. The author tracks learner progress through regular assessment and works with learners in class. Time, focus, and accountability are identified as challenges. The inquiry is said to enhance teaching quality and allow identification of next steps. Useful concepts discussed include self-