Looking forward to getting some classroom ideas I can share.
Global Positioning System (videos on her slideshare)
Have a 10 minute activity to do once you get outside because the device doesn't always pick up the satellites asap!
Hide things in easter eggs/film canisters, etc...
Careful not to get muggled!
She used Geocaching to teacher the staff about Big6. They have a little booklet, stickers are in the cache for them to put in their booklet.
PE teacher - got Dr. Seuss books and all the caches had to do with books and there was a physical activity to go with it.
History Mysteries - What do all the Caches you found have in common?
Don't need the internet for :
QR voice as a cache
Text QR code
Geocaching University -http://geocacher-u.com/