Dorothy Ann is the beautiful English American class bookworm, always looking for a fact in one of her many books. In the episode The Magic School Bus Blows its Top, Dorothy Ann lost her books, but she realized she didn't need them to learn about facts. However, when she got them back, she went back to checking everything in them. She appears to love astronomy, especially in Out of This World and Sees Stars, where she is shown to have a telescope (in fact, she had received a new one for her ninth birthday in Sees Stars). She argues with Carlos and Ralphie often (though to be fair she argues with Carlos mostly). She appears to enjoy Physics, as she is seen with a Physics Books in Plays Ball. She usually wears a purple turtleneck sweater, blonde hair tied in pigtails, green pleated mini-skirt, green socks and purple and white sneakers. As in one episode, her hair was in pigtails, but with no tie. Dorothy Ann's last name is never mentioned in canon, books, or the TV show.