Eureka Math

1st Grade

Module 1

Lesson 23

At the request of elementary teachers, a team of Bethel & Sumner educators met as a committee to create Eureka slideshow presentations. These presentations are not meant as a script, nor are they required to be used. Please customize as needed. Thank you to the many educators who contributed to this project!

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Directions for customizing presentations are available on the next slide.

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Customize this Slideshow

Reflecting your Teaching Style and Learning Needs of Your Students

• When the Google Slides presentation is opened, it will look like Screen A.
• Click on the “pop-out” button in the upper right hand corner to change the view.
• The view now looks like Screen B.
• Within Google Slides (not Chrome), choose FILE.
• Choose MAKE A COPY and rename your presentation.
• Google Slides will open your renamed presentation.
• It is now editable & housed in MY DRIVE.

Screen B

Icons

Read, Draw, Write

Learning Target

Think Pair Share

Individual

Partner

Whole Class

Small Group Time

Small Group

Personal White Board

Problem Set

Manipulatives Needed

Fluency

Materials Needed

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• (S) 5-group cards (0–8 only) (Lesson 5 Template 1)
• (T) Addition chart with sums to 10 to project or post (Lesson 21 Template)
• (T) cover paper
• An addition chart with a cover will be projected for some of the lesson, but a paper copy with a cover will be required for some of the lesson as well
• (T) markers (three different colors)
• (S) Addition chart with sums to 10 (Lesson 21 Template),
• (S) Pencils or another writing utensil with three different colors

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I can look for and make use of structure on the addition chart by looking for and coloring problems with the same total.

Happy Counting by Twos

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Let’s do Happy Counting by twos from 0 to 20.

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Missing Part: 8

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You will work with partners, using 5-group cards. Each of you puts a card on your forehead. Your partner tells how many more to make 8. You must guess the cards on their foreheads. Partners can play simultaneously.

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Number Bond Dash: 8

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Let’s do a Number Bond Dash!

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Application Problem

John has 3 stickers. Mark has 4 stickers. Anna has 5 stickers. They each get two more stickers. How many do they each have now? Write a number bond and number sentence for each student.

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Concept Development

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What is 5+5?

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Concept Development

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5+5 is 10.

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Concept Development

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5+5 is 10!

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Concept Development

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What is 4+6?

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Concept Development

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4+6 is 10!

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Concept Development

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What is 3+7?

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Concept Development

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3+7 is 10!

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Concept Development

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What is 2+8?

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Concept Development

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2+8 is 10!

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Concept Development

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What is 1+9?

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Concept Development

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1+9 is 10!

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Concept Development

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Talk to your partner. What do you notice about the totals?

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Concept Development

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They are all the same! The totals are all 10!

They look like they’re moving up like stairs!

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Concept Development

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You said all of the totals are 10. Help me color in the expressions that equal 10.

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Concept Development

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What is 4+5?

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Concept Development

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4+5 is 9!

Talk with your partner. Find the other expressions that equal 9.

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Concept Development

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Let’s color them in.

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Concept Development

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Talk with your partner: What do you notice about these problems?

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Concept Development

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They all equal 9! The totals are all 1 less than the ones we colored in for 10. They make another staircase!

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Concept Development

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With your partner, look for expressions that equal 8. When you both agree, color them in with your last colored pencil.

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Concept Development

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Which expressions equal 8?

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Concept Development

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What patterns are you noticing?

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Problem Set

Debrief

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• Look at your Application Problem. What is similar in each of your number bonds? What is different? Could one number bond or number sentence help you solve another one?
• What did you notice about the number of boxes of each color? How many boxes will be colored for the total of 4? 3?
• Why do you think we have more totals for 10 compared to totals for 5?
• Which totals are the easiest for you to solve? Why?
• Which totals do you think you need to practice the most? What can you do to get better at these
• expressions?
• 􏰂 How is today’s work similar to what we did yesterday? How is it different?

Exit Ticket