What is the Language Acquisition Process? When exploring the needs of English Language Learners, we must review the development of language acquisition. Students are expected to learn two types of language, conversational language and academic language. “The distinction between academic and conversational proficiency was first articulated by Jim Cummins, who coined the terms basic interpersonal communicative skills (BICS) and cognitive academic language proficiency (CALP) years ago and has written extensively about them…” (as cited in Goldenberg, 2010). Conversational language is informal and acquired more easily than academic language. Academic language is the language used in textbooks, writing, and academic conversations. Students can acquire conversational language in a couple of years, but take much longer to master academic language. “Research in language acquisition supports the hypothesis that we all acquire language the same way-by understanding messages” (Krashen ...