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Session 1: Making Sense of Addition and Subtraction

What does it mean to add and subtract? And more importantly, how can students learn to translate word problems and everyday situations into number sentences that they can solve? This session explores the various addition and subtraction “problem structures” that students need to encounter, the types of representations students can use to make the operations visible, and the moves educators can make to help students advance in their learning, regardless of whether students are adding whole numbers, fractions or other types of numbers.