Lesson objective: Create teen numbers by adding a ten and single digit numbers 1 - 9.

This lesson helps to build fluency with place value and numeracy. This work develops students' understanding that a teen number is made of a ten and some more ones.

Students engage in Mathematical Practice MP.7: Students** **look for and make use of structre as they add ones to a ten to create a teen number. Students begin to recognize a pattern in the relationship between the "ones" they are adding and the teen number they are creating.

**Key vocabulary:**

- digit
- group
- number bond
- number path
- ones
- teen number
- ten
- a ten

**Special materials needed:**

- paper clip for spinner
- counters or linking cubes (17)