Lesson objective: Solve problems by creating and counting various arrangements of the same number.

This lesson provides an opportunity for students to apply their knowledge and understanding of counting to a real-life situation. Students are asked to create different arrangements of tickets that meet certain criteria but always have the same number of tickets.

Key Concept students will use:

- Arranging a set of objects in different ways does not change the number of objects counted.

Skills students will use:

- rote counting to 10 (Grade K, Unit 1)
- one-to-one correspondance (Grade K, Unit 1)
- counting sets of objects to answer the question "How many?"

Students engage in Mathematical Practice 6 (Attend to precision) as they consider and carefully create and count multiple arrangements of the 10 tickets.

**Key vocabulary: **

- arrangement
- fair (as in a State Fair)
- tickets

**Special materials needed:**

- cubes (for modeling and counting)