Lesson objective: Apply knowledge of organizing objects into equal groups to create arrays.

This lesson provides an opportunity for students to apply their knowledge and understanding of arrays to a real-life situation. Students are asked to help a character determine whether or not she has enough tickets for herself and her two friends to each ride two carnival rides.

Key Concept students will use:

Skills students will use:

- Students may add to find the total and naturally point out a connection to skip-counting. (Grade 2, Unit 8)

Students engage in Mathematical Practice 7 (Look for and make use of structure).** **As they compose arrays they recognize that the array structure is a collection of rows and columns and that it can be seen as a unit.

**Key vocabulary: **

- array
- columns
- equal
- organize
- rows
- share
- skip count