日本語教育の経験が第２言語教育全般にとって貴重である訳

What does the the “full-fledged” mean?

Before I acutually taught such a course,I could not imagine the achievement of 2000 hours` learning concentrated into 2 years.It was very different from 2000 hours spread over 10 years (The standard of English education in Japan.) Every weekday, students study Japanese for 5 hours at school, plus doing at least
an hour of homework. Their level of Japanese goes up like a rocket.The main difference is the massive quality of training.Students are streched to their full potential.
Another notable point in my own experience was the improvement in teachers` own skills.The system evolved by interaction with each generation of students. We were able to use all conceivable teaching methods. We were able to try even experimental lessons. As a result, over 60% of students passed level 1.
If we include those who nearly passed, but narrowly failed , the rate was much higher.This was even though half of them took a shorter course.(three-quarters lenghth - most of them were working part -time) It may be unfair to compare these results directly to those of English - speaking people, since these students were from countries that use Kanji (Chinese charasters).But I can tell you this: it is impossible to really talk about language education untill you do it in such mass and density, Anyone can reach level 1, if they put in a concentrated effort.

Please see and check my site: http://web.mac.com/awpmiya/
This is the site of Japanese lesson guidance.