Description
In Topic B, students compare quantities and begin using the symbols for greater than (>) and less than (<) (1.NBT.3). Students demonstrate their understanding of place value when they recognize that 18 is less than 21 since 2 tens already have a greater value than 1 ten 8 ones.
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Credits
From EngageNY.org of the New York State Education Department. Grade 1 Mathematics Module 4, Topic B.
Available from engageny.org/resource/grade-1-mathematics-module-4-topic-b; accessed 2015-05-29.
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