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Direct Link:
http://www.nist.gov/pml/general/time/
General Information
Subject(s): Science
Grade Level(s): 9, 10, 11, 12
Suggested Technology:
Computer for Presenter, Computers for Students, Internet Connection
Resource supports reading in content area:Yes
Keywords: time, history, calendar, atomic clock, Julian calendar, Mayan calendar, Stonehenge, NIST
Instructional Component Type(s):
Presentation/Slideshow
Resource Collection:
NSDL