Explicit Learning

Explicit learning is the conscious, intentional acquisition of language rules and forms. The learner is aware that they are learning, can typically verbalise what they have learned, and the resulting knowledge is accessible to conscious reflection. It contrasts with implicit learning, where knowledge is acquired without awareness.

Characteristics

• Awareness: The learner consciously attends to rules, patterns, or regularities
• Intentionality: There is a deliberate effort to learn
• Verbalisability: The learner can typically state the rule or generalisation
• Controlled processing: Access to explicitly learned knowledge requires attentional resources — see Monitoring

Role in SLA

The relationship between explicit learning and L2 acquisition is one of the most debated issues in SLA:

Strong interface position (DeKeyser, 1998): Explicit knowledge can become implicit through practice. Rules learned consciously can be proceduralised and eventually automatised — following skill acquisition theory. This justifies explicit grammar instruction as a starting point.

Non-interface position (Krashen, 1981): Explicit learning produces only "learned" knowledge useful for monitoring, never "acquired" knowledge for spontaneous production. See Acquisition vs Learning.

Weak interface position (R. Ellis, 1993): Explicit knowledge does not convert directly to implicit knowledge but facilitates acquisition by promoting noticing of forms in the input, which then feeds implicit learning processes.

What Explicit Learning Is Good For

Research suggests explicit learning is particularly effective for:

• Simple, categorical rules (e.g., third-person -s, article rules) — more than for complex, probabilistic patterns
• Noticing — explicit instruction draws attention to forms that might otherwise go unnoticed in the input
• Early stages of acquiring a new structure — providing an initial representation that practice can refine
• Metalinguistic awareness — understanding about language that supports self-correction and learning strategy use

Individual Differences

Not all learners benefit equally from explicit learning. Language analytic ability and working memory capacity predict how well learners acquire knowledge through explicit instruction. Learners with high analytic ability tend to benefit more from rule-based instruction.

Teaching Implications

• Explicit instruction is most effective when combined with communicative practice — form-focused instruction within meaningful contexts
• Focus on Form (drawing attention to form during communicative tasks) leverages explicit learning within implicit-learning-rich activities
• The goal is not to stop at explicit knowledge but to provide conditions for proceduralisation through practice
• Some features (especially those with low salience in the input) may require explicit instruction to be noticed at all — see Input Enhancement

References

• DeKeyser, R. (1998). Beyond focus on form: Cognitive perspectives on learning and practicing second language grammar. In C. Doughty & J. Williams (Eds.), Focus on form in classroom second language acquisition (pp. 42–63). Cambridge University Press.
• Ellis, R. (1993). The structural syllabus and second language acquisition. TESOL Quarterly, 27(1), 91–113.
• Ellis, N.C. (1994). Implicit and explicit language learning: An overview. In N.C. Ellis (Ed.), Implicit and explicit learning of languages (pp. 1–31). Academic Press.