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Grades K-2 Strategy Share: Addition with the Bar Model and Unifix Cubes

September 12, 2013

IMG_3446IMG_3448IMG_3449IMG_3450Grades K-2 Strategy Share: Addition with the Bar Model and Unifix Cubes

In Grade 2 today, students were “not getting” the Bar Model for addition, especially when the unknown is moved around (this is Common Core Standard 1.OA.1 – Grade 1) …

As a strategy, we combined the Unifix cubes with the Bar Model and the Part – Part Whole Model.

We are also going to explore the Commutative Property of Addition using Unifix Cubes and a Double Number Line. We used the Double Number Line black line master from Mastering the Basic Facts by enlarging it on the copier to 168% onto 11×14 paper.

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