Goal: Think as mathematicians! Count quickly by chunking, changing the form, or connecting to math you know.
Pattern #5 on visualpatterns.org
CthenC Google Slides Counting Circles
CthenC Planner Counting Circles
CthenC Meta Reflection Counting Circles
Back to Contemplate then Calculate Tasks
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Glad you like it.
This is one of my favorite CthenC tasks!
My students found sooo many counting shortcuts for this one! I hadn’t thought of making a 3 by 9 rectangle. Cool.