Lesson Planet Article
My 2011 Resolution: Investigate Mathematics of Calendars and Fitness Lesson Planet Article
Curated OER

My 2011 Resolution: Investigate Mathematics of Calendars and Fitness

For Teachers 3rd - 8th
Ring in the new year with interdisciplinary units related to the development of calendars and getting fit.
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Lesson Plan
Maya Math: Addition and Subtraction Lesson Plan
Curated OER

Maya Math: Addition and Subtraction

For Teachers 3rd - 5th
Students examine how ancient Maya counted, and practice addition and subtraction using Maya number glyphs.
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