"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"-- Provided by publisher.

iMath ideas : counting hundreds, tens, and ones -- Discover activity : roll place values -- Building place value -- Greater than and less than -- Math at work -- Connecting to history -- Playground fun -- iMath ideas : count them all -- What comes next?.