| Windows on Literacy Language, Literacy & Vocabulary Fluent Plus (Science): Machines Help Us Do Work, 6-Pack Contributor(s): National Geographic Learning (Author) |
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ISBN: 1426370075 ISBN-13: 9781426370076 Publisher: National Geographic Society OUR PRICE: $140.36 Product Type: Paperback - Other Formats Published: March 2007 |
| Additional Information |
| BISAC Categories: - Language Arts & Disciplines | Linguistics - General |
| Lexile Measure: 380 |
| Descriptions, Reviews, Etc. |
| Publisher Description: 6 copies of Machines Help Us Do Work Concept Book. People develop and use machines to meet specific needs, they make work easier |