## Strategy Share Anchor Chart - Section 3: Student Work Time and Strategy Share

# Sticker Stories

Lesson 9 of 10

## Objective: SWBAT apply understanding of groups of tens to solve grouping story problems.

#### Setting Up the Learning

*5 min*

**CCSS Context:**

This lesson asks students to use their understanding of the structure of a number (MP7) and apply some repeated reasoning (MP8) to help them solve problems. Students have had multiple opportunities to build concrete models of numbers. In this lesson, they take their understanding of the "tens place" to help them solve multiple problems. Students with a deep understanding of place value will understand that the tens place will always help them know how many groups of 10 are within a larger quantity, connecting back to the idea of repeated reasoning.

**Review**

Yesterday we saw a pattern in how we write these numbers. We started to see that one of the numbers, the tens place, told us how many tens we need. And one number, the ones place, told us how many ones we needed.

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**Connect**

Today we will see if we can make things into groups of 10s. 10 is a number we often group into. When Ms. Cole counts, she uses tens to help her count quickly. When we sell stickers at the sticker shop, each page has 10. Grouping things into 10s helps us do math in the real world.

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**Objective** : Your thinking job today is: What does the number tell me about how I can break it into groups of 10?

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#### Opening Discussion

*10 min*

After reading the problem, lead students in a series of questions that help them "make sense of the problem" before they persevere through solving it (CCSS Mathematical Practice 1). - Think Aloud: When I read this problem, I have to pay close attention to what the question wants to know. Let’s read it again and I am going to circle the question. (T circles) This question wants to know how many strips of 10 I can make.
- How many stickers do we have?
- What are we doing with those stickers?
Now I want you to figure it out on your own. Let’s read it one more time. We have to pay super close attention to figure out what is happening.
See attached video for more on the "Break It Into 10s" hand motion and chant! |

#### Resources

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I'll choose 1-2 strategies for students to share. See attached picture for our class chart!
- Why did they break it into groups of 10?
- What part of the number helped us figure out how many tens?
- How many strips of 10 will we need? Do we need 30 strips? No! Why do we only need 3?
Restate student thinking: When we are solving problems that ask us to break numbers into 10s, the number is helping us figure that out. We have to be on the eye out for Break into 10s problems! They want to know how many tens are in the number. |

#### Resources

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#### Independent Practice

*15 min*

**Group A: Intervention**

Goals: Students build the number using cubes or single stickers, then put it into groups of 10. After making the groups of 10, I'll have students circle the number that tells them how many tens to make the connection more explicit.

**Group B: Right on Track**

Goals: I'll push these students to predict how many tens before building out of sticker strips. I'll ask, "What in the number can help us predict how many tens?"

**Group C: Extension**

Goals: Students at this level are consistently using structure of number and understand that one digit tells them how many tens. I'll push these students by giving them numbers off the decade. This will push them to see how many tens and how many extra ones.

*For independent practice sheets and sticker strips and singles, see attached documents.*

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#### Closing

*5 min*

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- UNIT 1: Creating a Culture of Math
- UNIT 2: Count to 100 Every Day!
- UNIT 3: 10: A First Grader's Best Friend
- UNIT 4: Charting and Analyzing Data
- UNIT 5: Inch by Inch, Paperclip by Paperclip
- UNIT 6: Properties of Addition and Subtraction
- UNIT 7: Shapes and Blocks
- UNIT 8: Understanding Equality
- UNIT 9: Adding and Subtracting: Base Ten
- UNIT 10: Solving 3 Addend Problems
- UNIT 11: Missing Parts: Unknowns in All Positions
- UNIT 12: Parts of a Whole
- UNIT 13: Tick Tock, Tick Tock
- UNIT 14: Time is Money: Hitting all the MD Standards
- UNIT 15: Base 10 Bonanza
- UNIT 16: What the WHAT?! Teaching Challenging Story Problems

- LESSON 1: Don't Let Pigeon Drive The Bus: Concepts of 10 and Some More
- LESSON 2: Loading the Bus: Decomposing Teen Numbers
- LESSON 3: Numbers in the Teens
- LESSON 4: M&M Tens
- LESSON 5: M&M Ten Frames
- LESSON 6: Concepts of 10 Bakery
- LESSON 7: Understanding Ten Rods
- LESSON 8: Sticker Shop
- LESSON 9: Sticker Stories
- LESSON 10: Happy Birthday Little Bear