Unit 5, Lesson 17# Count across tens when counting by ones through 40.

EngageNY 60 min(s)Support for English Language Learners

In this lesson, students work to know the number names and the count sequence. They use their personal Rekenrek to count across tens, by ones through 40. Students count both the regular way (10, 11, 12) and the Say Ten way (1 ten, 1 ten 1, 1 ten 2).