2004 - The Math Explorer Games and Activities for Middle School Youth Groups [An Exploratorium book] (Paperback) ISBN-13: 9781559535403 ISBN-10: 1559535407 Genres: Nonfiction, Science & Math, Humor & Entertainment, Engineering & Transportation ? 1999 - The Brain Explorer [Exploratorium at Home] (Paperback) ISBN-13: 9780805045383 ISBN-10: 0805045384 Genres: Children's Books, Science & Math 1 The Brain Explorer Puzzles Riddles Illusions and Other Mental Adventures (Other) ISBN-13: 9780613166126 ISBN-10: 0613166124 Genre: Science & Math ? |