Language Learning Cheat Sheet

The core ideas of Language Learning distilled into a single, scannable reference — perfect for review or quick lookup.

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Quick Reference

Comprehensible Input

A concept introduced by Stephen Krashen proposing that language acquisition occurs when learners are exposed to input that is slightly beyond their current competence level (i+1), where understanding is aided by context, visuals, and prior knowledge.

Spaced Repetition

A learning technique in which review sessions are scheduled at increasing intervals to exploit the psychological spacing effect, ensuring that vocabulary and grammar points are transferred from short-term to long-term memory.

Immersion

A method of language learning in which the learner is surrounded by the target language in everyday situations, forcing them to use the language for real communication rather than relying on translation from their native language.

Interlanguage

The evolving linguistic system that a second language learner constructs, which is distinct from both their native language and the target language. It contains systematic rules and errors that reflect the learner's current stage of development.

Transfer (Language Transfer)

The influence of a learner's native language on the production and comprehension of the target language. Positive transfer occurs when native language structures align with the target; negative transfer (interference) occurs when they conflict.

CEFR Proficiency Levels

The Common European Framework of Reference for Languages is an international standard that describes language ability on a six-level scale: A1 and A2 (basic user), B1 and B2 (independent user), and C1 and C2 (proficient user).

Fossilization

The phenomenon in which certain language errors become permanently embedded in a learner's interlanguage despite continued exposure and instruction, often occurring when communication remains successful despite the errors.

Output Hypothesis

Proposed by Merrill Swain, this theory holds that producing language (speaking and writing) is essential for acquisition because it forces learners to process language more deeply, notice gaps in their knowledge, and test hypotheses about the target language.

Critical Period Hypothesis

The theory that there is a biologically determined window of time (roughly before puberty) during which language acquisition occurs most naturally and effortlessly, after which full native-like attainment becomes significantly more difficult.

Communicative Language Teaching (CLT)

An approach to language instruction that emphasizes interaction and meaningful communication as both the means and the ultimate goal of learning, prioritizing fluency and real-world language use over rote memorization of grammar rules.

Key Terms at a Glance

Acquisition:The subconscious process of developing language ability through meaningful interaction, similar to how children learn their first language.

Affective Filter:A metaphorical barrier raised by negative emotions (anxiety, low motivation) that impedes language acquisition by blocking input from being processed.

Bilingualism:The ability to use two languages with functional proficiency, ranging from balanced bilingualism (equal fluency) to dominant bilingualism (stronger in one language).

CEFR:The Common European Framework of Reference for Languages, an international standard describing language proficiency across six levels from A1 (beginner) to C2 (mastery).

Code-Switching:Alternating between two or more languages within a single conversation, sentence, or utterance, often serving social, pragmatic, or cognitive functions.

Communicative Competence:The ability to use language effectively and appropriately in real social contexts, encompassing grammatical, sociolinguistic, discourse, and strategic competence.

Comprehensible Input:Language input that is slightly above the learner's current level but made understandable through context, a core concept in Krashen's theory of second language acquisition.

Critical Period Hypothesis:The theory that there is a biologically optimal window for language acquisition, after which achieving native-like proficiency becomes significantly harder.

Extensive Reading:A language learning approach involving reading large quantities of easy, enjoyable texts to build vocabulary, reading speed, and general language competence.

Fluency:The ability to produce and comprehend language smoothly, rapidly, and without excessive hesitation, distinct from accuracy (correctness of form).

Fossilization:The permanent cessation of interlanguage development in specific areas, resulting in persistent errors that resist further correction or instruction.

Grammar-Translation Method:A classical approach to language teaching that emphasizes the study of grammar rules and the translation of texts between the native and target languages.

Immersion:A language learning environment where the target language is the primary or exclusive medium of communication, forcing learners to use it for authentic purposes.

Input Hypothesis:Krashen's theory that language acquisition occurs when learners are exposed to input at the i+1 level — slightly above their current competence.

Interlanguage:The dynamic linguistic system a second language learner constructs, which is influenced by both the L1 and L2 and evolves as proficiency develops.

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