Goal: Think as mathematicians! Count quickly by chunking, changing the form, or connecting to math you know.
CthenC Planner Windmills
CthenC Meta Reflection Windmills
Contemplate Then Calculate: Algebra I Counting Squares [27 minutes] from New Visions for Public Schools on Vimeo.
Pattern #30 from John Golden on www.visualpatterns.org
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