This Together in a Line: Collaborative Addition lesson plan also includes:
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Partners solve addition equations using counters and number lines, each counting out the number of manipulatives for an addend and then combining their quantities on a single number line to ascertain the sum. They write equations horizontally and vertically to communicate conclusions. Useful for K-3; adjust numbers so they are appropriate for your class. Excellent collaborative learning design with hands-on opportunities for tactile learners.