““Advancing no particular theory of their own, some insist that explicit teaching of grammar, vocabulary, semantics, pragmatics, and even pronunciation is necessary because students in immersion classrooms sometimes have trouble with these features of the second language. Direct instruction, they say, is the only remedy. Such claims rely heavily on short-term studies in which older students—rarely K–12 English learners—are taught a linguistic form, such as word order, verb conjugation, relative clauses, and so forth, then tested on their conscious knowledge of the form soon after.””
