Formichelli, Linda,  1969-, <br/><br/>
Tools of timekeeping :  a kid's guide to the history & science of telling time / 
Linda Formichelli and W. Eric Martin. 
 - [1st edition]. 
 - 137 pages :  illustrations, maps ;  26 cm 
<br/><br/>Includes bibliographical references (page 131) and index. 
<br/><br/> Introduction: now is the time --  The birth of time --  Here come the hours --  Telling time after twilight --  What is a clock anyway? --  Escaping the time traps of old --  Back and forth and back and forth --  Any way you slice it --  Crystal clear timekeeping --  Measuring time without moving --  Time on your hands. 
<br/><br/> Describes the history and technology of the methods people have used to measure time, and provides 15 activities designed to improve one's awareness of the complexity of timekeeping. 
<br/><br/><label>ISBN: </label>0972202676 9780972202671 9781435276086 1435276086 
<br/><br/><label>LCCN: </label>2006278548 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time measurements--History--Juvenile literature.<br/>Calendar--History--Juvenile literature.<br/>Time--History.<br/>Calendar--History.<br/>Calendar.<br/>Time measurements.
<br/><br/><label>Subjects--Index Terms: </label>Education USA Activity Juvenile Timekeeper (general) 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Literature.<br/>History.<br/>Juvenile works.<br/>Literature.