RT @PeterEspinola: How can you prove that you counted all the rectangles in this picture? The 12s used tables and strategic counting to keep track last week, this new problem was a breeze. #thinkingclassrooms #problemsolving @DufferinSchool https://t.co/6mG8QMqHFI

How can you prove that you counted all the rectangles in this picture? The 12s used tables and strategic counting to keep track last week, this new problem was a breeze. #thinkingclassrooms #problemsolving @DufferinSchool pic.twitter.com/6mG8QMqHFI

— Peter Espinola (@PeterEspinola) April 16, 2018

from Twitter https://twitter.com/DufferinSchool

April 20, 2018 at 12:36PM
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