Long time no see!
in fact,
Lately I was busy about things of the music or something.

anyway,
I found the interested article
which is mentioned the junior high school using ipod for study.

http://www.asahi.com/national/update/0330/TKY200903300325.html

actually,
college students use an ipod for study,
but I’ve rarely heard of using it at junior high school

though some parents say that the students using iphone is not good
the school is going to buy 40 iphone.

I think I should use more technology for study