unit 1

Expressions and Equations
1

Unit 1

Lesson 1

Adding, Subtracting, and Working with Data

Count and Add

Learning

Goal

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Let’s count objects.

Unit 1 ● Lesson 1

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What Do You Know About __?

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Unit 1 ● Lesson 1 ● Warm-up

What do you know about math?

What do you know about math?

1

Launch

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Revisit Counting Collections, Up to 20

Unit 1 ● Lesson 1 ● Activity 1

What are some different ways you and your partner can
work together to count your collection?

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Revisit Counting Collections, Up to 20

Unit 1 ● Lesson 1 ● Activity 1

How many are there? Show how you counted.

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Activity Synthesis

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Revisit Counting Collections, Up to 20

Unit 1 ● Lesson 1 ● Activity 1

●How did you keep track of the objects as you counted?

●How did they show their count?

●What are some things you count at home?

1

Launch

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Introduce Number Race, Add to 10

Unit 1 ● Lesson 1 ● Activity 2

How many dots are on the cubes? How do you know?

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Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Introduce Number Race, Add to 10

Unit 1 ● Lesson 1 ● Activity 2

●Roll the dot cubes and find the total number of dots.

●Show your partner how you know.

●Record the total on the gameboard.

●If the total is more than 10, roll the cubes again.

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Activity Synthesis

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Introduce Number Race, Add to 10

Unit 1 ● Lesson 1 ● Activity 2

●How many dots are on the first cube?

●How many dots are on the other cube?

●We can add to find the total number of dots and write an expression to
match.

●What expression can we write to show that we are putting together the
number of dots on each of these cubes?

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Lesson Synthesis

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

Count and Add

Unit 1 ● Lesson 1

What does it look like and sound like to do math together as a
mathematical community?

1

Slides are CC BY NC Kendall Hunt Publishing. Curriculum excerpts are CC BY Illustrative Mathematics.

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