- ISBN: 9781599535494 | 1599535491
- Cover: Hardcover
- Copyright: 1/15/2012
"Mathematical concepts of "greater than" and "lesser than" are introduced through a story about building a playground. Readers learn about place value as they help the builder gather and bundle materials. Different methods of determining place value are used such as place-value blocks and linking cubes. Includes a discover activity, history connection, and mathematical vocabulary introduction"--