| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Detective Club: Mysteries for Young Thinkers | 978-1-59363-065-2 | 2005 | Judy Leimbach |
| Math Extension Units Book 1 | 978-1-59363-099-7 | 2005 | " |
| More Adventures of the Detective Club | 978-1-59363-222-9 | 2007 | " |
| Primarily Math: A Problem Solving Approach, Grades 2-4 | 978-1-59363-123-9 | 2005 | " |