Incoming Resources
- Los números, Arianna Candell ; [illustrator], Francesc Rovira
- Qué es uno?, What is one?
- More or less, content consultant, Bettina Takacs ; design by Keith Plechaty
- Arithme-tickle, an even number of odd riddle-rhymes, by J. Patrick Lewis
- Whaddaya think of that?, Laurie Berkner
- Mathematics, Susan Echaore-Yoon ; project editor, Kathy Osmus
- The only math book you'll ever need, Stanley Kogelman and Barbara R. Heller
- Mathematical reasoning
- Aaron and Gayla's counting book, written by Eloise Greenfield ; pictures by Jan Spivey Gilchrist
- Fun with 9umbers, written by Massin ; illustrated by Les Chats pelés