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The Lexical Approach: Why Grammar Rules Aren't Enough

Michael Lewis's radical idea: fluency comes from chunks, not rules.

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Matthew James Soldato

ESL Teacher & Founder of DrillKitMar 14, 2026

The Idea That Changed Language Teaching

In 1993, Michael Lewis published The Lexical Approach with a controversial thesis: language is not grammar + words. It's predominantly composed of multi-word chunks — fixed and semi-fixed expressions that fluent speakers retrieve as single units rather than constructing word by word.
Examples of chunks: 'as a matter of fact,' 'I was just wondering if,' 'it goes without saying,' 'you know what I mean?' These aren't built from grammar rules in real time — they're stored and retrieved whole.
Implication for teaching: spending 80% of lesson time on grammar rules, then a vocabulary section of isolated words, may fundamentally misunderstand how language actually works.

Four Types of Lexical Chunks

1. Polywords/Fixed expressions
'By the way,' 'in other words,' 'on the other hand.' Stored and used whole.
2. Collocations
Words that naturally co-occur: 'make a decision' (not 'do a decision'), 'heavy rain' (not 'strong rain'), 'strongly disagree' (not 'very disagree').
3. Idioms
'Under the weather,' 'bite the bullet,' 'hit the nail on the head.' Must be learned as complete units.
4. Sentence stems/frames
Semi-fixed patterns with slots: 'I was wondering if you could...', 'Have you ever...?', 'What I mean is...'. These are the building blocks of fluent discourse.

The Chunk Advantage

Faster Processing

Retrieving chunks as units is 40% faster than constructing from rules

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Native-Like Fluency

Native speakers communicate in chunks — learners who chunk sound more natural

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Vocabulary Growth

Teaching collocations expands effective vocabulary faster than single words

Teacher Tip

Whenever you teach a new word, automatically teach it in its most common collocations. Don't teach 'decision' — teach 'make a decision, come to a decision, face a difficult decision, reverse a decision.' DrillKit can generate collocation-focused gap-fill exercises for any vocabulary set.

Frequently Asked Questions

Does the Lexical Approach mean abandoning grammar teaching?

No — Lewis himself never suggested eliminating grammar. The shift is in emphasis: treating grammar as a framework for understanding patterns in chunks, not as the primary vehicle for language acquisition.

How do I determine which chunks to teach?

Focus on high-frequency chunks from the British National Corpus or COCA. Tools like COCA (corpus of contemporary American English) let you check the most common collocations for any target word. Also mine student-produced text for missing collocations — 'do a mistake' reveals what chunk they haven't acquired.

Is the Lexical Approach better for some levels than others?

It's valuable at all levels, but especially transformative at B1-B2 where learners often plateau on grammar but can dramatically improve by acquiring more sophisticated chunks.

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