I'm looking for a children's movie that was about these small creatures (I think they were moles) that have a teacher and then one of the children get sick and they go on this adventure to get a flower to help her. They are small and brown. There is one seen where the students arewal,king around and find a rode with a broken glass bottle. The teacher freaks out and tell them to stay awayt from there. Later they go down this little stream in a boat. The teacher has a replica of an airplane that one of the students play with and accidentally breaks. But when one of the kids get sick, they all go on this adventure to find a special flower.
Pleaaaaaaseeee help me