Unit 1, Lesson 1, Grade K icon
Unit 1, Lesson 1

Numbers 11-19: Exploration

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The goal is to get students to start seeing numbers 11-19 as ten ones plus some more ones. Addressing these numbers in this way will set the foundation for students to make the connection to ten ones as a unit called ten in first grade. Mathematically proficient students make sense of quantities and their relationships in problem situations.

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