Fundamentals of Second Language Acquisition: A Crash Course (READ NOTES)

Summary

Jeff McQuillan presents five ideas associated with Stephen Krashen’s account of second-language acquisition. His central message for teachers is that understanding why language develops helps them judge which classroom practices are likely to help.

1. Acquisition and learning are different

• Acquisition is unconscious knowledge of a language—the kind people use to understand and communicate without stopping to think through rules.
• Learning is conscious knowledge, such as being able to state or study a grammar rule.
• A person can know a rule but still not use it reliably in spontaneous speech or writing. The two kinds of knowledge do not automatically turn into each other.
• McQuillan argues that acquisition is especially important because people rely on it for most everyday listening, speaking, reading, and writing.

2. The Natural Order Hypothesis

• Grammatical features are acquired in a natural sequence: some tend to develop relatively early, while others take much longer.
• The sequence is not the same as the order in which a teacher presents rules or a student studies them. A rule can be taught early without being acquired early.
• McQuillan uses English examples: plural -s and the -ing form tend to be acquired relatively early, while third-person singular -s (as in she walks) may take a long time.
• The reasons for this order are not fully understood. The practical lesson is not to assume that slow or inconsistent use means a student has failed; some features take time.
• In response to a question, McQuillan says learners of the same target language generally follow the same acquisition order, though speakers of a related language may progress through it faster because more of the input is understandable to them.

3. The Monitor Hypothesis

Consciously learned rules can sometimes be used to check or edit language output, but their use is limited. McQuillan says three conditions must be present:

1. The learner knows the relevant rule.
2. The learner has enough time to apply it.
3. The learner is focused on correctness and form, rather than mainly on the message.

These conditions are difficult to meet during ordinary conversation, where people usually concentrate on what they want to say. Writing and grammar tests offer more opportunity to use a monitor. Grammar instruction can therefore help with rule-focused tasks, but it is not a substitute for acquiring language for everyday communication.

4. The Input (or Comprehension) Hypothesis

• Acquisition develops through comprehensible input: language learners hear or read and can understand.
• Input needs to be mostly understandable while containing some language just beyond what the learner already knows. McQuillan describes this as “i + 1”: the learner’s current level (i) plus a small step beyond it.
• Context helps learners infer unfamiliar language. For example, a reader who understands nearly all of a sentence may work out an unknown word from the surrounding information.
• Learners need repeated exposure to language before they can use many features automatically. As a result, speaking or writing may lag behind understanding.
• McQuillan describes this delay as a silent period. Teachers should not assume that a learner who is not yet producing much language has stopped learning.

5. The Affective Filter Hypothesis

• Emotional factors can make it harder for understandable input to support acquisition. McQuillan names anxiety, low self-esteem, low motivation, and feeling out of place as possible barriers.
• Frequent correction may make learners anxious or reluctant to participate. Teachers should avoid making students afraid to take risks.
• A relaxed, supportive classroom can help learners feel safe and engaged.
• McQuillan also recommends helping students identify with the community of speakers they are learning to join—for example, seeing themselves as members of a group of English speakers.

Practical ways to make classroom input comprehensible

McQuillan recommends that teachers:

• Use visuals and gestures: Pictures, objects, facial expressions, and movements can clarify meaning.
• Speak clearly and more slowly: Teachers often speak too quickly for learners to follow. Slow down, articulate clearly, and open the mouth; normal speed can come later.
• Use accessible vocabulary and sentence structures: Build from what learners can already understand.
• Draw on learners’ background knowledge: Choose topics they know something about, such as familiar geography, places, or subjects. Existing knowledge helps make new language understandable.
• Tell stories: Stories can hold attention and provide meaningful, comprehensible language. They can also be based on familiar topics from history, science, art, or geography.
• Increase difficulty gradually: Keep the material mostly understandable while introducing a manageable amount of new language.
• Allow time for production: Provide input without demanding immediate fluent output; learners may need a substantial period of listening and reading before they speak spontaneously.
• Limit discouraging correction: Maintain an environment where learners feel comfortable listening, participating, and making mistakes.

Speakers and sources featured

• Jeff McQuillan — Presenter; explains the five hypotheses and their classroom implications.
• Amir — Host or moderator; introduces the question period and closes the session.
• Puya — Participant; asks about whether the natural order applies across learners with different first languages.
• Yolanda — Participant; thanks the presenter and mentions that her daughter is listening with her.
• Stephen Krashen — The scholar whose hypotheses and ideas are the primary source for the talk; he is discussed as an influence, not heard speaking in the subtitles.
• Yolanda’s daughter — Mentioned as an attendee, but does not speak in the subtitles.