Students build and break down numbers 11–20 using base–ten blocks in this unit to develop their place-value comprehension. At the end of this lesson, students will:
- To represent a number in the range of 11–20, use base–ten blocks.
- Match numbers and displays of base-ten blocks in the range 11-20.
- Determine the number of ones and tens in the range of 11 to 20.
