| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| I Did It Without Thinking | 978-0-531-20526-6 (0-531-20526-6) | 2008 |
| Math Practice Puzzles: 40 Reproducible Solve-the-Riddle Activity Pages That Help All Kids Master Key Math Skills | 978-0-439-72085-4 (0-439-72085-0) | 2005 |