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Lesson: Making 17, 18, and 19 Mathematics • Kindergarten

In this lesson, we will learn how to decompose the numbers 17, 18, and 19 into ten ones and some remaining ones.

Lesson Plan

Students will be able to

use models to represent the numbers 17, 18, and 19,
describe the numbers 17, 18, and 19 in terms of 10 ones and 7, 8, or 9 more ones,
solve problems where it is necessary to know how to decompose 17, 18, or 19 into 10 ones and some more ones.

Q1:

Pick the set of cards that shows 18 hearts.

Q2:

Daniel had seventeen buttons.

Pile A had ten ones.

How many are in Pile B?

Q3:

Thirteen is ten ones and 3 leftover.

Which of the following shows seventeen?

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