Lesson objective: Count to find how many items there are in a collection up to 10 items.

This lesson helps to build fluency with counting. Balloons and other common objects are used here because they provide a familiar context with which to practice counting. This work develops students' understanding that objects must be counted once and only once and the last number said when counting a collection tells the quantity of items in the collection.

Students engage in Mathematical Practice 6 (Attend to precision) as they count objects carefully, ensuring that each object is counted once and only once.

**Key vocabulary:**

- count
- one
- eight
- five
- four
- nine
- seven
- six
- three
- ten
- two