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Math by the Month
math by the month: It’s about time

Liat Zippin and Lisa Englard; Edited by Mark Amador 

October 2013, Volume 20, Issue 3, Page 144

Abstract:
As students solve problems related to time, they discover patterns and build understanding of the relationships among seconds, minutes, hours, days, months, and years. Reasoning about time also strengthens concepts related to estimation, orders of magnitude, common multiples, ratios, and operations with numbers that are based on grouping by sixty instead of by ten.

Keywords:
Article
Problem Solving / Problem Posing