About Time: A First Look at Time and Clocks
  • About Time: A First Look at Time and Clocks
  • About Time: A First Look at Time and Clocks

About Time: A First Look at Time and Clocks

by Bruce Koscielniak
     
 

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Time to read a book.
Time to wash dishes.
Time to do this or that.

You say things like this every day, all the time. But there was a time when time itself was undefined—no one knew the difference between a minute, an hour, or a day.
Then people started creating tools to measure time. First they used the big stuff around them—the sun, the

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Overview


Time to read a book.
Time to wash dishes.
Time to do this or that.

You say things like this every day, all the time. But there was a time when time itself was undefined—no one knew the difference between a minute, an hour, or a day.
Then people started creating tools to measure time. First they used the big stuff around them—the sun, the moon, water. Soon after, using the knowledge they got from their natural time-telling tools, people began to build clocks—huge clocks unlike the ones we use today. They also used their knowledge of the sun and moon to create calendars made up of months and years.
Now, centuries later, we have clocks all around us. We can easily figure out how long a month is. But it took many years of tinkering and inventing to perfect the art of telling time. You could take a few moments now to read all about time. If you have a minute, that is.
 This title has been selected as a Common Core Text Exemplar (Grades 4-5, Informational Texts)

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Editorial 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)
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

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Product Details

ISBN-13:
9780544105126
Publisher:
Houghton Mifflin Harcourt
Publication date:
09/10/2013
Pages:
32
Sales rank:
558,582
Product dimensions:
7.82(w) x 11.08(h) x 0.14(d)
Lexile:
1200L (what's this?)
Age Range:
7 - 10 Years

What People are saying about this

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

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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