There are many units with which to measure time, including seconds, hours, days, and even decades. Clocks and calendars make it easier to see time pass, but time is always moving even when we arent measuring it. Beginning with the sundials of the ancient Egyptians, readers will learn much more than just how to measure time. Simple explanations of time zones and the inner workings of classic and modern timepieces accompany brief introductions to some of the greatest scientists to study time. Engaging questions and a hands-on activity guide them through this important math concept.
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Gr 4-6-This well-written series is thorough in providing details. Each book begins with a page explaining the subject and then continues with additional facts: historical information, tools used for measuring, examples, extremes of the measurement, and measurement units for the U.S. and the world. Text boxes pose calculation questions (answers are given in the back of the book). The problems containing conversion calculations-a necessary skill for students-are especially helpful. Readers will enjoy the fun facts that help them visualize measurements, such as "330 children, standing on top of one another, would reach the top of the Empire State Building!" Color photos and diagrams help explain the concepts and "Hands On" activities conclude each volume. Readers will not seek out these books, but teachers will find them useful to introduce the topics or provide supplemental information. α(c) Copyright 2011. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.
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Book Description Gareth Stevens Pub Learning library, 2012. Paperback. Book Condition: Brand New. 32 pages. 10.25x7.75x0.25 inches. In Stock. Bookseller Inventory # 1433974541
Book Description Gareth Stevens Publishing, 2012. Paperback. Book Condition: New. Ships with Tracking Number! INTERNATIONAL WORLDWIDE Shipping available. Buy with confidence, excellent customer service!. Bookseller Inventory # 1433974541n