i (representation of language level)

i (/aɪ/) can be used in algebraic notation to represent language level, following Krashen:

• "i" is the language level.
• "i + 1" is language a level harder, not well understood in the given context.
• "i - 1" is language a level easier, and well understood in the given context.

This article is a stub and may need expanding. If you feel you can help improve it please click the "Edit" link at top to edit it. If you need help editing, simple guidance can be found here.