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# Odd Person Out

Get students moving around the classroom as they learn about odd and even numbers. Students play a game similar to "musical chairs" as they consider the results for even and odd numbers of students.

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Students will be able to classify numbers as odd or even.

(5 minutes)
• Ask students what it means to be an even number. Take a few answers before explaining that even numbers can be divided into two equal groups with no leftovers.
• Repeat this process when talking about what it means to be an odd number. Explain that odd numbers cannot be divided into two equal groups. When you try to divide odd numbers into two equal groups, there is one left over.
(5 minutes)
• Tell students that they will be playing a game similar to musical chairs—but with no chairs! The game is called "Odd Person Out." Explain that you will start by having 10 people play this game. They will walk around the classroom until the music stops. When the music stops, each student will find a partner and sit down together. They should all be able to find a partner because 10 is an even number.
• Have students play Odd Person Out with 10 people.
(10 minutes)
• Now have students play Odd Person Out with 9 people. Ask the class if all students will be able to find a partner.
• Have students play Out Person Out with 9 people. When one person isn't able to find a partner, explain that this is because 9 is an odd number.
• Repeat this game with odd and even numbers of students. You can even try with the whole class!
(20 minutes)
• Hand out the worksheets to each student. Have them work independently to complete each worksheet.

Support: Have students complete just the Counting Numbers: Odd or Even worksheet.

Enrichment: Have students create their own worksheets for practicing recognizing odd and even numbers.

(5 minutes)
• Assess how students are recognizing odd and even numbers.
(5 minutes)
• Bring the group back together.
• Have students play one more game of Odd Person Out, using a number of their choice.