## Reflection: Vertical Alignment Ordering Numbers to 30 - Section 2: Presentation of Lesson

Most of the Common Core Standards for Counting and Cardinality only mention numbers up to 20.  I still included some activities for higher number because of requests from our first grade team.  When discussing the standards at PLCs, we mentioned as kindergarten teachers how we were not teaching our number to 30 unit because we can not justify it with the standards.  The first grade teachers said that they are always so impressed with our students' number sense and asked that we please at least expose them to higher numbers.  We decided to do this with the justification of K.CC.1 which is Count to 100 by ones and tens.  I found that my students needed a lot of support with this lesson, but when given a number line and/or 100 chart, they did great!

Need Support
Vertical Alignment: Need Support

# Ordering Numbers to 30

Unit 9: Numbers to 100
Lesson 4 of 8

## Big Idea: Numbers don't stop at 20! We spend the last week or so of school looking at the numbers beyond 20. Today we do it by looking at the number line.

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55 minutes

### Christina Yingling-Smith

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