## Reflection: Checks for Understanding Super Seventeen - Section 2: Independent Practice

One of the most common mistakes kindergartners make when working with teen numbers has to do with how they articulate teen numbers. For instance, many beginning students will say something like, "Fourteen-fourteen" for 13-14 when counting, and students are known to say "60" instead of "16." When one student says "70" for "17," for instance, it's fun to keep it light and ask, "SEVENTY??? Where did 70 come from? I thought we were working on 17!" We can sing our "10-20-30..." counting by tens song if needed, but consistently reinforcing the difference between teen numbers and counting by tens is important. Keeping learning light, playful, and consistent is critical, so it's important to find and maintain a balance between a strong commitment to dispelling misconceptions and keeping learning fun.

Keeping them talking
Checks for Understanding: Keeping them talking

# Super Seventeen

Unit 14: Tricky Teen Numbers
Lesson 7 of 12

## Big Idea: Students will enjoy a variety of hands-on activities to practice 17 and building the concept of a ten and extra ones.

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Standards:
Subject(s):
Math, Number Sets, counting
55 minutes

### Michelle Novelli

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