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Integrating Integers with Tug-of-War and Two-Sided Counters

Kristyn Sartin

An introduction to integer addition and subtraction in a conceptual 
and relatable way using two-sided counters and tug-of-war.

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Construct It! Introducing Integers with Floats and Anchors

Christy Pettis and Aran Glancy

Use the Floats and Anchors context as well as physical and digital materials to help students understand integer addition and subtraction.