On the Scope, Claims and Implications of Krashen’s Theory

Throughout the previous decades many theories have been suggested and applied for second language education. Their implementations have caused many debates among educators and linguists. They have come up with so many theories and approaches based on their perspectives of how languages are best learned. Among these theories are the one offered by Stephen Krashen, the renowned American linguist. This article sheds light on the main claims of the five hypotheses offered by Krashen; it presents some evaluations of whether these hypotheses offer any successful insights that can be incorporated into language teaching of different sittings and ends by concluding that Krashen’s hypotheses provide a comprehensive vision about understanding L2 learning and, therefore, exploiting their elements would be fruitful.