This article aims to discuss about the importance of learning contexts in second language acquisition. For this, the first part of this study does a description of essentials tasks in second language acquisition; the second part presents a speculative recover through theories of authors as Brown (1994), Ellis (1989), Krashen (in: Shutz, 2007) and VanPatten (2004). As a final goal, a discussion about the effects of the learning contexts in second language acquisition is presented, following Collentine & Freed (2004), Collentine (2004) and Segalowitz et all (2005) researches.