Unit 5, Lesson 21# Represent teen number decompositions as 10 ones and some ones, and find a hidden part.

EngageNY 60 min(s)Support for English Language Learners

In this lesson, students work to count to tell the number of objects by answering "how many?" questions. They represent teen number decompositions as 10 ones and some ones and find a hidden part. They create number bonds with counters, and hide one of the parts from their partner, who must figure out what the hidden part is.