The N+1 Idea: Learning Just Above Your Level
Stephen Krashen's comprehensible input hypothesis says we acquire language from material slightly above our current level. What the idea is, where it is disputed, and how to use it.
In the late 1970s and early 1980s, the linguist Stephen Krashen put forward the input hypothesis: we acquire a language mainly by understanding 'comprehensible input', material that is slightly above our current level. He wrote this as i+1, where 'i' is what you can already do and '+1' is the next step. Learners often call it N+1.
Why the Right Level Is Hard to Find
The idea is simple; applying it is not. Material that is too easy teaches you little, and material that is too hard is slow and discouraging. Your level also differs by skill: many learners read better than they understand speech. Finding the right material takes some trial and error, whether you work with a teacher, a textbook or an app.
How Ambrion Applies It
Ambrion picks the short cards in your daily practice for your level. You set that level yourself, or take a short level check, which suggests a level and asks before it changes yours. If the cards feel too easy or too hard, change your level or take the check again. Ambrion does not keep a word-by-word model of what you know.
Krashen's hypothesis is influential, but researchers disagree about how much input alone explains; many also stress speaking, writing and feedback. Ambrion is new, and we have no learner outcome data to report.
Beyond Vocabulary: N+1 for Grammar
The same idea can be applied to grammar. Look for new structures inside sentences you otherwise understand, not only as isolated rules. When you read or listen, notice the forms that keep coming up, look them up, and then watch for them again. The longer exercises in Ambrion let you practise one skill at a time, grammar included.
- N+1 Method
- Comprehensible Input
- Methodology
