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lesson 19
1 hour

Comparing Efficiency


Description

Objective: Compare efficiency of counting on and taking from ten.

Students consider how are two strategies, counting on to make ten and take from ten, are similar to each other.

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From EngageNY.org of the New York State Education Department. Grade 1 Mathematics Module 2, Topic B, Lesson 19. Available from engageny.org/resource/grade-1-mathematics-module-2-topic-b-lesson-19; accessed 2015-05-29.
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