Lesson 1
Addition Fluency Within 10
Warmup: How Many Do You See: Within 10 (10 minutes)
Narrative
Launch
 Groups of 2
 “How many do you see? How do you see them?”
 Flash the image.
 30 seconds: quiet think time
Activity
 Display the image.
 “Discuss your thinking with your partner.”
 1 minute: partner discussion
 Record responses.
 Repeat for each image.
Student Facing
How many do you see?
How do you see them?
Student Response
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Activity Synthesis
 “How can the 10frame help you know the sum of two numbers?” (When I look at a 10frame I can tell how many are there without counting. When I see two numbers in the 10frame, I can tell what the sum is by looking at how many empty spaces there are and subtracting from 10.)
Activity 1: Sums I've Got (15 minutes)
Narrative
The purpose of this activity is for students to identify the sums within 10 that they do not yet know from memory. Students write these sums on index cards which can then be used as flash cards in order to help students practice fluency throughout the unit.
Supports accessibility for: Memory, Organization
Required Materials
Materials to Gather
Launch
 Give students colored pencils and index cards.
 “Today we are going to revisit sums with values up to 10. We will identify the sums we know the value of from memory and the sums we are still working on."
 Display addition chart.
 Demonstrate saying the value of some of the sums you know aloud, then quickly coloring in that box of the chart. Demonstrate skipping around on the chart, rather than moving down a row or column, to avoid using patterns to identify sums that students aren’t fluent with yet.
 “Look at each expression in the chart and color in all the sums you know from memory. When you are done, you will probably have some boxes that are not colored in. These are the sums you are still working on. Write each of these sums on a card. Then use the cards to practice these sums.”
Activity
 10 minutes: independent work time
 Monitor for sums many students identify they still need to work on.
Student Facing
Write each sum that is not colored, on an index card.
Use the cards to practice these sums.
Student Response
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Activity Synthesis

“Many of us have a few sums we are still working on. How can we practice these sums so we find their values with fluency?” (We can think of sums we do know quickly that are like the ones we don't know quickly. We can look for ways to make those sums easier. We can have someone quiz us on them. We can practice different ways that are faster than counting all or using our fingers.)
Activity 2: Centers: Choice Time (25 minutes)
Narrative
The purpose of this activity is for students to choose from activities that focus on building fluency adding within 10. Students choose from previously introduced centers.
 Check It Off
 Number Puzzles
 Capture Squares
Advances: Speaking
Required Materials
Materials to Gather
Required Preparation
 Gather materials from previous centers:
 Check It Off, Stage 1
 Number Puzzles, Stage 1
 Capture Squares, Stage 1
Launch
 Groups of 2
 “Today we are going to choose from centers we have already learned.”
 Display the center choices in the student book.
 “Think about what you would like to do first.”
 30 seconds: quiet think time
Activity
 Invite students to work at the center of their choice.
 10 minutes: center work time
 “Choose what you would like to do next.”
 10 minutes: center work time
Student Facing
Choose a center.
Check it Off
Number Puzzles
Capture Squares
Activity Synthesis
 “Is it more helpful to practice sums on your index cards, or to play games using addition within 10?” (Index cards because you only focus on the ones you don’t know yet. Games because you get to practice lots of different facts and it is more fun.)
Lesson Synthesis
Lesson Synthesis
“Today we identified the sums within 10 we still need to work on in order to know them from memory. Why is it important to know the sums within 10 from memory?” (When we work with larger numbers we will need the sums within 10. So we don’t have to draw a picture or count to solve every problem.)
Cooldown: Unit 8, Section A Checkpoint (0 minutes)
CoolDown
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