TECHNOLOGY
Mattern, Joanne

The History of Radio

(4) K-3 Transportation and Communication series. In each book, a clear and interesting text and sharp color photos briefly cover such topics as history, various kinds of bridges or houses, construction, and building materials. An overly fussy design detracts from the book's usefulness. Bridges contains an experiment about bridge strength; Houses includes directions for building a model tepee. Reading list, websites. Glos., ind. [Review covers these Structure titles: Bridges and Houses.]

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