Introduces the mathematical concept of pairs by showing what comes in twos at the zoo.
- ISBN10 1588108627
- ISBN13 9781588108623
- Publish Date 16 February 2002
- Publish Status Out of Print
- Out of Print 2 July 2021
- Publish Country US
- Imprint Heinemann Educational Books
- Format Paperback (US Trade)
- Pages 24
- Language Spanish