Category: Second Language Acquisition

Language acquisition vs language learning: Krashen's distinction between subconscious acquisition and conscious learning, and why it matters for teaching.

BICS and CALP explained: Cummins's distinction between conversational and academic language, why it takes 5-7 years, and what it means for districts.

The Interaction Hypothesis explained: Long's claim that negotiating meaning in conversation drives language acquisition, and why it matters for speaking.

The Output Hypothesis explained: Swain's claim that producing language drives acquisition, the three functions of output, and why speaking matters.

The affective filter explained: how anxiety, motivation, and confidence affect language acquisition, and how teachers lower it for English Learners.

The Input Hypothesis explained: Krashen's claim that we acquire language through comprehensible input at i+1, and what it means for teaching.

The stages of second language acquisition: preproduction, early production, speech emergence, intermediate fluency, and advanced fluency, with teaching tips.

Stephen Krashen's theory of second language acquisition: the five hypotheses , acquisition-learning, monitor, natural order, input, and affective filter.

Comprehensible input explained: what it means, Krashen's i+1, why it drives language acquisition, and how teachers make input understandable.

What is second language acquisition? A clear explanation of how people learn a second language, the key ideas, and why it matters for teaching English Learners.