Below is a video which I highly recommend if you are interested in learning and understanding more about Krashen’s hypotheses which underpins Teaching with Comprehensibvle Input.

Videocast 3 – The Comprehensible Input Hypothesis

The above videocast is the third in a series and below are the first two in the series:

videocast 2 – Mental Representation & Skill

videocast 1- Methodological Principles for Language Teaching