## Reflection: Advanced Students Counting with Tens and Hundreds - Section 3: Independent Practice

I provided the more advanced students with IN/OUT boxes using money to extend their thinking beyond just adding 10 or 100 to a number. The students were able to complete the problems and explain their thinking. One child showed that while she could complete the problems, she was expecting them all to be addition problems and she did not carefully assess what was needed to complete the problem.

# Counting with Tens and Hundreds

Unit 2: Adding and Subtracting the Basics
Lesson 17 of 18

## Big Idea: Being able to add and subtract with 10 and 100 is a Common Core skill expected of second grade students.

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45 minutes

### Beth McKenna

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