What is Extensive Reading?

/*** CE What is extensive reading ***/

[000] Extensive Reading is an approach to the teaching of
language, which involves the students reading a lot of
books that are easy and interesting that they choose.

[001] Er, even though we say ER is an approach to the teaching
of reading, we've discovered through a bunch of research
studies that it also helps the other areas of language
development: reading, writing, listening, and speaking.

[002] And also the effect, dimensions, an attidude and
motivation.(?)

[003] So, ER is quite exciting in that it gets more than just
reading.