This study tries to shed light on what makes the English teacher's proficiency excellent and how these factors help the English teacher achieve excellent proficiency. One female English teacher from a private secondary school participated in this study. Her excellent English proficiency is proven by some proficiency test certificates such as TOEFL…

This study explores the effects of extensive audio-visual input with three captioning modes -- unenhanced captions, textually enhanced captions, and no captions -- on learning a variety of L2 grammatical constructions and examines the effects of three learnability factors: construction type, frequency, and recency. A total of 112 participants…