My Teacher Glows in the Dark (My Teacher is An Alien #3) by Bruce Coville - Vintage Paperback

Kidnapped in Space?

Peter Thompson has had some pretty weird teachers in his time. By the time he discovers that his newest teacher glows in the dark, he’s flying away from Earth in a spaceship full of aliens and there’s no one he can call. How do you report an alien to the F.B.I. anyway?

Before Peter can do anything, he’s taken on the strangest field trip of his life! His friends, his father, his school are suddenly a million miles away!