World Book's innovative use of the Web's unique qualities as a teaching tool sets it apart as a particularly good application for younger school children. This site was the easiest to use, and the most responsive and accurately researched encyclopedia that I found. World Book Online gets the gold star. This will be a useful source for children in the early grades as well as older students reading below grade level. With more than 11,000 entries, this is an essential tool for vocabulary development.
Every definition is clear and straightforward but achieved with simple language.
American Reference Books Annual, vol. Recommended for early elementary . All rights reserved.