6, Lesson 21, Unit 4, Grade 2, EngageNY icon
Problem Set

Problem Set

Lesson 21. Unit 4. Grade 2 EngageNY

EngageNY10 min(s)

This Problem Set is a part of the Lesson 21, Unit 4, Grade 2. In this lesson, students develop conceptual understanding of the algorithm when there are two compositions. Students relate their drawings to the vertical form, recording each change they make to their model on the numerical representation to build proficiency. They use place-value language to explain these changes.

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