Lesson objective: Decompose whole numbers to determine if they are even or odd.

This lesson provides an opportunity for students to apply their knowledge and understanding of even and odd whole numbers to a real-life situation. Students are asked to decompose a set of tickets into even and odd numbers to be redeemed for prizes at the Odd and Even Carnival.

Key Concept students will use:

- We can write an equation to show that an even whole number is the sum of two equal addends.

Skills students will use:

Students engage in Mathematical Practice 4 (Model with mathematics) as they explore combinations of even and odd numbers to determine what ticket amounts they can redeem for prizes at the Odd and Even Carnival. Students also engage in Mathematical Practice 7** **(Look for and make use of structure) as they utilize different strategies to create different combinations of even and odd numbers.

**Key vocabulary: **

- addend
- decompose
- doubles addition fact
- doubles addition fact plus one
- even
- odd
- sum

**Special materials needed:**