Language Acquisition and Instruction
What this domain covers
This domain tests how learners acquire German and how instruction supports that process: second-language acquisition theories, bilingualism, proficiency development, learner differences, and evidence-informed methods. Items may ask you to diagnose a learner profile, select a scaffold, or explain why an activity supports acquisition.
Core rules and concepts
- Input and interaction. Krashen’s comprehensible input (i+1), affective filter, and silent period; Long’s interaction hypothesis (negotiation of meaning); Swain’s output hypothesis (pushed output).
- Cognitive and social theory. Vygotsky’s zone of proximal development and scaffolding; Cummins’s BICS versus CALP distinction.
- Communicative competence. Canale and Swain’s grammatical, sociolinguistic, discourse, and strategic components.
- Proficiency. ACTFL Novice, Intermediate, Advanced, and Superior levels; performance versus proficiency; heritage learners as a distinct population.
- Methods. Communicative language teaching, TPR, TPRS, task-based instruction, content-based/immersion models, FLES/FLEX; sustained target-language use.
- Learner variables and errors. Motivation, aptitude, age, anxiety, and strategies; L1 transfer and interlanguage; developmental versus transfer errors.
- Bilingualism. Additive versus subtractive bilingualism; code-switching as a communicative resource.
Worked example
A seventh grader chats fluently at lunch but cannot understand a short history text on the Berlin Wall. Using Cummins, the student has strong BICS but weaker CALP: the text is cognitively demanding and context-reduced. Scaffold with pre-teaching, visuals, a graphic organizer, sentence frames, and a jigsaw; do not conclude the student “can’t do German.” Krashen adds that input must be comprehensible (i+1), and a low-anxiety task lowers the affective filter. A transfer error such as Ich bin kalt for “I am cold” (instead of Mir ist kalt) should be treated as a developmental/pragmatic issue, not as evidence of low ability.
Traps that cost marks
Equating grammar drills with acquisition; assuming BICS equals CALP; treating heritage speakers as beginners; overcorrecting every error and raising the affective filter; confusing performance with proficiency; demanding immediate output during a silent period; believing one method fits all learners; ignoring L1 transfer and interlanguage development.