About Time: A First Look at Time and Clocks

Overview

“[An] impressive history of timekeeping.”—Horn Book

Bruce Koscielniak, in this Common Core text exemplar, tells the intriguing story of the many years spent tinkering and inventing to perfect the art of telling time. When time itself was undefined, no one knew the difference between a minute, an hour, and a day. Then people started creating tools to measure time. First they used the sun, the moon, and the water, but soon after people began using their knowledge about the ...

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About Time: A First Look at Time and Clocks

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Overview

“[An] impressive history of timekeeping.”—Horn Book

Bruce Koscielniak, in this Common Core text exemplar, tells the intriguing story of the many years spent tinkering and inventing to perfect the art of telling time. When time itself was undefined, no one knew the difference between a minute, an hour, and a day. Then people started creating tools to measure time. First they used the sun, the moon, and the water, but soon after people began using their knowledge about the natural world to build clocks and to create calendars made up of months and years. Centuries later, we have clocks and calendars all around us!

This title has been selected as a Common Core Text Exemplar (Grades 4-5, Informational Texts)

Describes the concept of time and how it has been measured throughout history, using water clocks, sundials, calendars, and atomic vibrations.

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Editorial Reviews

From the Publisher
Children will be entertained as well as informed by this presentation.
School Library Journal

Koscielniak's watercolor depictions of various clockworks are unusually lucid and well-explained. Mechanically minded children...will find the time well spent.
Kirkus Reviews

School Library Journal
Gr 3-5-Describing the concept of time and how it has been measured, Koscielniak gives an instructive yet entertaining march through the ages. A two-page explanation of daytime versus nighttime, as well as the seasons, sets the stage for the beginning of timekeeping and the origins of the Gregorian calendar. The author provides just enough detail for readers to understand how sundials and water clocks work and to comprehend the problems with their accuracy. Attractive watercolor illustrations in green and tan tones enhance the text. Detailed diagrams further explain such concepts as Huygens's balance spring, which later developed into the portable watch. Endpapers show various timepieces through the ages from an Egyptian shadow clock in 1500 B.C. to electric clocks in A.D. 2000. Children will be entertained as well as informed by this presentation.-Blair Christolon, Prince William Public Library System, Manassas, VA Copyright 2004 Reed Business Information.
Kirkus Reviews
Mechanically minded children willing to follow Koscielniak through this quick history of calendars and clocks will find the time well spent. Though he begins with the sun, seasons, and solar and lunar calendars (not ancient American ones, however), he focuses most closely on how clocks have used shadows and sand, water, weights, springs, electricity, and, finally, atomic vibrations, to measure out increasingly finer gradations. Of what, he declines to discuss, aside from passing references to Ancient Greeks, St. Augustine, Einstein, and unspecified modern ideas. His watercolor depictions of various clockworks are unusually lucid, though, and well-explained, making this an adequate alternative to Anita Ganeri's Story of Time and Clocks (1997) or Trent Duffy's The Clock (2000). (Picture book/nonfiction. 7-9)
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Product Details

  • ISBN-13: 9780618396689
  • Publisher: Houghton Mifflin Harcourt
  • Publication date: 11/28/2004
  • Format: Library Binding
  • Edition description: None
  • Pages: 32
  • Sales rank: 458,622
  • Age range: 5 - 8 Years
  • Lexile: 1200L (what's this?)
  • Product dimensions: 8.50 (w) x 11.00 (h) x 0.13 (d)

Meet the Author


Bruce Koscielniak is the author and illustrator of several books for children; he is also a musician who has played the violin and jazz guitar for many years. He lives in the Berkshires region of Massachusetts.
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