Communicative Language Teaching

TL;DR: Communicative Language Teaching (CLT) is the dominant "use the language to learn it" classroom philosophy — a huge upgrade over grammar drills, but in practice it pushes early output and group "communication" that input-first learners can do better with raw, abundant comprehensible input.

What it is

Communicative Language Teaching is the mainstream methodology behind most modern school, university, and adult language classes in the Western world. Its core claim is simple and largely correct: language is learned by using it for real communication, not by memorizing grammar rules and translating sentences. The goal is communicative competence — being able to actually get meaning across — rather than perfect knowledge of verb tables.

CLT emerged in the 1970s and 1980s as a revolt against the Grammar-Translation method and the rote audio-lingual drilling that came before it. Instead of "conjugate this verb," CLT classrooms run information-gap activities, role-plays, pair work, and task-based projects where students exchange genuine information ("find out three things your partner did this weekend"). Fluency is prioritized over accuracy in the moment; meaning beats form.

In gym terms: the old grammar-translation method was like reading a 600-page anatomy textbook and never touching a weight. CLT got people off the textbook and into the gym. That's the win. The catch is that CLT often hands you a 20-minute group circuit with five other beginners spotting each other badly — instead of giving you the one thing your brain actually grows on: massive, comprehensible reps of the language done right. Useful machine, wrong primary lift.

There are two flavors worth knowing. "Strong" CLT says acquisition happens almost entirely through communicating, and explicit teaching should nearly vanish. "Weak" CLT keeps some structured practice and presentation but frames it around communicative goals. Most real classrooms run a watered-down weak version, and that's where the gap between CLT's theory and a beginner's reality opens up.

The evidence

CLT didn't appear from nowhere — it sits on real theory, and that theory is mostly the same theory that powers input-first learning.

Dell Hymes coined "communicative competence" in 1972, arguing that knowing a language means knowing how to use it appropriately in context, not just knowing its grammar. Michael Canale and Merrill Swain (1980) expanded this into a framework — grammatical, sociolinguistic, discourse, and strategic competence — that still underpins CLT syllabi today. Henry Widdowson distinguished usage (knowing the rules) from use (actually communicating), which became CLT's rallying cry.

Here's the honest part. The single strongest pillar under CLT is Stephen Krashen's work on Comprehensible Input. Krashen's Input Hypothesis (i+1) argues that we acquire language by understanding messages slightly above our current level — and his Affective Filter hypothesis explains why low-anxiety, meaning-focused settings beat anxious drilling. CLT classrooms that flood students with understandable, meaningful language work largely because of input, not because of the speaking activities bolted on top. See Krashen's Five Hypotheses for the full machinery.

The disagreement is real and unresolved. Merrill Swain's Output Hypothesis (1985) argues that producing language — being pushed to speak and write — forces learners to notice gaps and process language more deeply. Michael Long's Interaction Hypothesis adds that negotiating meaning in conversation (clarifying, rephrasing) drives acquisition. These are the academic justifications for CLT's early-speaking, pair-work core. Krashen has consistently pushed back: output is a result of acquisition, not the engine of it, and forcing it early mostly produces anxiety. The Silent Period research supports waiting — comprehension reliably outpaces production.

So what does the classroom data actually show? Reviews of CLT (and its descendant, task-based language teaching, championed by researchers like Rod Ellis and Michael Long) find it clearly outperforms grammar-translation for real-world fluency. But two limits are well documented:

1. Beginner inefficiency. Early CLT often means low-level learners "communicating" in broken language with each other, reinforcing errors and getting thin input. Paul Nation's vocabulary research shows you need to know roughly 95–98% of the words in a text or conversation to follow it comfortably — and beginners doing pair work hit nowhere near that. They're not getting i+1; they're getting noise.
2. Fluency-over-accuracy fossilization. When form is never addressed, errors can harden permanently ("fossilize"). Even input-first advocates concede that some attention to form, delivered through comprehensible input rather than rule lectures, matters for advanced precision. See Grammar: Acquiring Intuition.

No honest source claims CLT makes you "fluent in 30 days." It's a multi-year process, same as every real method. CLT's genuine contribution was killing the textbook-only era. Its blind spot is the same one school has everywhere: too much performance, not enough raw reps.

How to actually use it

You probably will meet CLT — it's what your class, your tutor, or your language exchange is running. Here's how to make it serve your input-first training instead of replacing it.

1. Treat speaking activities as the cooldown, not the workout. Your real growth happens between classes, in hours of comprehensible input. Use class role-plays and discussions to deploy what input already gave you — never as your main source of new language. Output emerges; don't force the bar before your brain can lift it. See Speaking: How Output Emerges.

1. Hijack the "communication" for input. The most valuable thing in a good CLT class is a teacher or partner speaking comprehensible, slightly-challenging language to you. Lean into listening-heavy activities, ask people to tell you stories, and shut up more than the syllabus wants. Train Mastering Listening like it's your squat.

1. Refuse to perform before you're ready. If an activity forces you to produce sentences you can't yet understand when others say them, you're being asked to deadlift with no base. It's fine to listen, repeat, or stay quiet. The Affective Filter is real — anxiety blocks acquisition.

1. Plug the input hole CLT leaves. School gives you maybe 3 hours a week. Build the other 10+ yourself with a daily input habit: comprehensible video, graded readers, podcasts. See Building Your Daily Routine and Finding Comprehensible Input.

1. Use Sentence Mining + Spaced Repetition (SRS) for the words and phrases that show up in class. Heard a useful chunk during a role-play? Mine it, drop it into Anki↗, and let spaced reps lock it in. This is how you beat the Forgetting Curve that classroom-only learning ignores.

1. Let accuracy come from volume, not correction. Don't obsess over the grammar feedback. Get enough comprehensible input and most "errors" quietly self-correct as your intuition fills in. The Lexical Approach — learning chunks, not rules — fits CLT beautifully here.

Resources

• "Communicative Language Teaching Today" by Jack C. Richards — a free, short, readable primer from Cambridge; search the title to find the PDF. The clearest plain-English explanation of what CLT actually is.
• "The Practice of English Language Teaching" by Jeremy Harmer — the standard teacher-training reference; shows how CLT plays out in real classrooms.
• Rod Ellis, "Task-Based Language Teaching" — the deeper, more rigorous descendant of CLT; worth reading if you want the academic state of the art.
• Stephen Krashen's free books (sdkrashen.com) — Principles and Practice in Second Language Acquisition and The Power of Reading lay out the input-first counterweight to CLT's output emphasis.
• Comprehensible input video channels (e.g. Dreaming Spanish↗ for Spanish, and equivalents for other languages) — what a CLT classroom wishes it could deliver in input volume. See Comprehensible Input Platforms.
• Anki (apps.ankiweb.net) — for mining and reviewing the useful chunks your class throws at you.

Related

• Grammar-Translation (and Why It Fails)
• Comprehensible Input (Krashen)
• The Input Hypothesis (i+1)
• The Natural Approach
• Speaking: How Output Emerges
• The Silent Period
• The Affective Filter
• Second Language Acquisition (Overview)