In 1954, B.F. Skinner published his seminal article, "The Science of Learning and the Art of Teaching," which presented a core argument: since we now possess a science of learning—behavioral psychology—we should use this science to fundamentally reform the art of teaching. From a scientist&
In 1972, linguist Larry Selinker, in his seminal paper "Interlanguage", proposed the groundbreaking Interlanguage Theory. This theory revolutionized our understanding by positing that the linguistic system constructed by second language learners is not a flawed imitation of the target language waiting to be corrected, but an independent, systematic,
In 1967, S. P. Corder published the article "The Significance of Learners' Mistakes," which can be regarded as the beginning of Second Language Acquisition research. Before SLA became an independent discipline, errors in language learning were often seen as signs of learning failure, primarily attributed to interference
Stephen Krashen, in the late 1970s and early 1980s, proposed a series of hypotheses that formed a highly influential theory of second language acquisition. Among them, the "Input Hypothesis" serves as the cornerstone of this framework. Its highly generalized and exclusive assertion—that comprehensible input is the only