Where Does the Time Go?Book - 2013
"The mathematical concepts of elapsed time, converting units of time, and equivalent units of time are introduced as readers learn about astronauts aboard the International Space Station. Concepts include adding and subtracting units of time, using a number line diagram, and time intervals. This book features a discover activity, connections to science and history, and mathematical vocabulary introduction"-- Provided by publisher.
Publisher: Chicago, IL : Norwood House Press, 
Branch Call Number: JE 529 PERRITA
Characteristics: 32 pages : color illustrations ; 23 cm