Unit 6, Lesson 8# Count to 120 in unit form using only tens and ones. Represent numbers to 120 as tens and ones on the place value chart.

EngageNY 60 min(s)

In this lesson, students use Rekenreks and place-value charts to represent 100 as 10 tens and then represent 101 as 10 tens and 1 one, 102 as 10 tens and 2 ones, etc. This work with the unit form of numbers to 120 supports students' understanding of the written numerals 101 through 109, which are the most challenging to write.