Ss enjoying counting buttons! Subitizing is a fundamental skill in the development of students' understanding of number! @DufferinSchool @WinnipegSD @MelissaAsmunds1 pic.twitter.com/7w6Lvu3SPI
— Mary Jane (@msmaryjane9795) October 19, 2018
from Twitter https://twitter.com/DufferinSchool
October 20, 2018 at 07:21PM
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