Lesson: Identifying Odd and Even Numbers: Pairing or Grouping Mathematics • 2nd Grade

In this lesson, we will learn how to decide if a number up to 20 is even or odd by investigating whether you can divide it into two equal groups without any remainders.

Lesson Video

Sample Question Videos

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Lesson Worksheet

Q1:

Here is a group of 9 people.

Can we divide the group into pairs so that everyone has a partner?

Q2:

Is the number of stars even or odd?

Q3:

Hannah counted 19 plants in her garden, but 4 of them were weeds. Will she have an even or odd number of plants after she removes the weeds? Why?