When I was taking Japanese classes in 2003 I found that recording the audio was very helpful for studying at home. At the time there was no such thing as podcasting and I would burn several CDs for my classmates to enjoy. Now podcasting could be done for free and I see no reason why all language classes shouldn’t be recorded for children to study at home that night.
Another interesting aspect of podcasting involves “twinning” a class with a foreign counter part encouraging children to build social bonds which in turn creates an enthusiasm and reason to learn a language.
Ewan McIntosh has some interesting information on his blog