We should organize a school trip to Japan!
Everything is so different from what we're used to in America/Europe (selon où tu habites). We'd discover so many things, in every subjects! Some examples of what your students could learn:
Did you know that 70% of Japan consists of mountains?
There are four different writing systems in Japan; Romaji, Katakana, Hiragana, and Kanji.
Sumo is Japan's national sport (interesting enough to make us forget about soccer!
Japan is the world’s largest consumer of Amazon rain forest timber.
In ancient Japan, it was common for women to blacken their teeth with dye as white teeth were considered ugly. This practice persisted until the late 1800's. The American style smile (big, wide, and white) would have been seen as "exposing too much bone"