Understanding the theory

Excerpt from Self-Selected Pleasure Reading and Story Listening
for Foreign Language Classrooms
by Beniko Mason.Full text here         

Understanding of the theory (Krashen, 1985, 2004) behind the reading and listening program is necessary. Without understanding that the cause of language acquisition is comprehensible input,
teachers can easily revert to skill-based methodology, which will slow down the acquisition process. There are three ways to do extensive reading; 1) the Traditional way, 2) the Comprehension way, and 3) the Eclectic way. Most teachers use the third one, the eclectic way, but the second one, the comprehension way is the most efficient (Mason, 2013b).