The four pieces
The one frame I use to check whether my study week is missing something.
⏱ About 5 min read
Of everything I have read about language learning, this is the frame I found most useful. It comes from Paul Nation, a researcher in New Zealand, who calls it the four strands. The original paper is free to read here, 12 pages long.
The idea: a decent study programme needs all four of the things below, and each should take roughly a quarter of the time.
I like it because it does not tell you what to study. It just gives you a way to check: which piece did I leave empty last week?
What the four pieces are
| Piece | What it means | What I actually do |
|---|---|---|
| 1. Meaning-focused input | Listening and reading material you mostly understand | Watch shows, listen to podcasts, read fiction |
| 2. Meaning-focused output | Speaking and writing to convey a real idea, not to do an exercise | Journal, summarise an episode, have a conversation |
| 3. Language-focused learning | Studying the language directly: words, grammar, pronunciation | Anki, a grammar book, sound drills |
| 4. Fluency development | Redoing what is already easy, but faster | Skim an easy book, replay an old episode, retell one story several times |
The condition on piece 1 is specific: the material has to be at a level where you already know about 98% of the words — a number from Hu and Nation (2000). I go into it in How many words is enough.
Piece 4 is one I had never heard anyone mention before, and the one I neglected longest.
The piece I forgot: fluency development
Piece 4 teaches you nothing new. That is exactly the point.
It takes what you already know and makes using it fast and automatic. Without this piece you become someone who knows a lot of words and still speaks haltingly — because every word takes a second to retrieve.
Three things I do for it:
- Easy reading, fast. Pick a book where I barely need a lookup, then read for 15 straight minutes, stopping for nothing.
- Replay old episodes. An episode I have already seen twice, listened to a third time at 1.25x.
- Tell it three times. Pick a story, tell it in English in 4 minutes. Then tell the same story in 3 minutes. Then 2. The content doesn't change, only the time you have.
The 4–3–2 exercise
That third one is a named exercise in the research, called 4/3/2. Nation describes it in Improving speaking fluency (1989).
The first time you think while you talk. By the third, the sentences come out ready-made. I find it far more effective than telling three different stories in the same nine minutes.
How I actually split my time
Nation says the four should be equal. I never managed that, and I don't think I should pretend otherwise.
My first year leaned hard into piece 1:
| Stage | Input | Output | Language-focused | Fluency |
|---|---|---|---|---|
| Year 1 | ~70% | ~5% | ~20% | ~5% |
| Year 2 | ~55% | ~15% | ~15% | ~15% |
| Year 3 onwards | ~40% | ~30% | ~10% | ~20% |
I still think leaning into input early is right — with nothing in your head, there is nothing to produce. But "leaning" is not the same as "zero".
A piece at zero is the real problem
The real mistake is not an uneven split. It is leaving one piece at zero for months on end.
I left output at zero for nearly two years. By the time I needed to speak, I understood everything being said to me and could not assemble a decent sentence myself.
The weekend self-check
Every Sunday I spend about two minutes on this:
1. How many minutes did I listen and read this week?
Under 5 hours and nothing else matters as much as pulling that number up.
2. Did I speak or write a single sentence of my own?
Three journal sentences count. Zero is the problem.
3. Did I have any session studying the language directly?
Anki, looking one unfamiliar structure up properly, drilling a sound.
4. Did I have any session doing something easy, at speed?
This is the piece I forget most. If every session in a week felt hard, this is usually what is missing.
Sources for this page
- Nation, I.S.P. (2007). The four strands. Innovation in Language Learning and Teaching 1(1), 1–12. — the whole four-strands frame.
- Nation, I.S.P. (1989). Improving speaking fluency. System 17(3), 377–384. — the 4/3/2 exercise.
- Hu, M. & Nation, I.S.P. (2000). Unknown vocabulary density and reading comprehension. — the 98% threshold.
- Paul Nation's free downloads — the page also has a Vietnamese translation of the short book What do you need to know to learn a foreign language?