Lesson objective: Apply their knowledge about arrays to find the total number of objects in a set.

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 find the total number of jellybeans in a jar.

Key Concept students will use:

Skills students will use:

Students engage in Mathematical Practice 7 (Look for and make use of structure) as they understand the structure of an array (rows & columns).

**Key vocabulary: **

- arrange
- array
- column
- equal
- group
- objects
- row