"With new bonus challenges by Dan Marzollo and Dave Marzollo."
Summary:
Provides brainteasers to solve in a blackboard scene, hundreds of tiny objects to ponder in a classification puzzle, Rube Goldberg-type contraptions to figure out, and a nature spread that encourages learning through observation.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.