We used Earth Balloon for our Art & Academic Fair last February. It was a huge sucess. We had a time slotted (approximately 30-45 minutes per class) for a day and a half. So each class had a guided tour and they incorporated it with what each class was studying. Then they came back that night for the Arts & Academic Fair so all the parents could go in and their children could tell them about what they learned. The people with Earth Balloons are wonderful to work with. I think you'd really be happy with it.
