Unit 8 - Lesson 4 - Grade 2: Illustrative Mathematics

Last updated over 1 year ago

21 Nsɛmmisa

Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

Grade 2 Unit 8

Lesson 4: Decompose Even and Odd Numbers

CC BY 2021 Illustrative Mathematics

Akwankyerɛ

Grade 2 Unit 8

Lesson 4: Decompose Even and Odd Numbers

CC BY 2021 Illustrative Mathematics

Lesson: Decompose Even and Odd Numbers

Number Talk: Equal Addends (Warm Up)

Share in Different Ways

Represent Numbers with Two Addends

Cool Down: Two Equal Addends

Unit 8 - Lesson 4 - Grade 2: Illustrative Mathematics

Last updated over 1 year ago

21 Nsɛmmisa

Hyɛ no nsow a efi ɔkyerɛwfo no hɔ:

Grade 2 Unit 8

Lesson 4: Decompose Even and Odd Numbers

CC BY 2021 Illustrative Mathematics

Akwankyerɛ

Grade 2 Unit 8

Lesson 4: Decompose Even and Odd Numbers

CC BY 2021 Illustrative Mathematics

Lesson: Decompose Even and Odd Numbers

Number Talk: Equal Addends (Warm Up)

Find the value of each expression mentally.

Share in Different Ways

Kiran baked 12 cookies. He wants to put them in two gift bags. Show a few different ways he can share the cookies.

Can both bags have the same amount of cookies?

12 = +

Can both bags have an even number of cookies?

12 = +

Can both bags have an odd number of cookies?

12 = +

Lin baked 14 cookies. She wants to put them in two gift bags. Show a few different ways she can share

the cookies.

Can both bags have the same amount of cookies?

14 = +

Can both bags have an even number of cookies?

14 = +

Can both bags have an odd number of cookies?

14 = +

Noah baked 15 cookies. He wants to put them in two gift bags. Show a few different ways he can share

the cookies.

Can both bags have the same amount of cookies?

15 = +

Can both bags have an even number of cookies?

15 = +

Can both bags have an odd number of cookies?

1 = +

Represent Numbers with Two Addends

Pick a number between 0 and 20.
Decide with your partner whether the number is even or odd.
Complete the equation to show your number as the sum of two equal addends. If you cannot use two equal addends, use two addends that are as close as possible.

Cool Down: Two Equal Addends

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Decide whether the number of dots is even or odd.

even

odd

Write an equation with two equal addends for each image if you can.

= +

null

Decide whether the number of dots is even or odd.

even

odd

Write an equation with two equal addends for each image if you can.

= +

Unit 8 - Lesson 4 - Grade 2: Illustrative Mathematics

Number Talk: Equal Addends (Warm Up)

Share in Different Ways

Represent Numbers with Two Addends

Unit 8 - Lesson 4 - Grade 2: Illustrative Mathematics

Number Talk: Equal Addends (Warm Up)

Find the value of each expression mentally.

Find the value of each expression mentally.

Find the value of each expression mentally.

Find the value of each expression mentally.

Share in Different Ways

Represent Numbers with Two Addends

Pick a number between 0 and 20.Decide with your partner whether the number is even or odd.Complete the equation to show your number as the sum of two equal addends. If you cannot use two equal addends, use two addends that are as close as possible.

Decide whether the number of dots is even or odd.

Decide whether the number of dots is even or odd.

Find the value of each expression mentally.

Find the value of each expression mentally.

Find the value of each expression mentally.

Find the value of each expression mentally.

Pick a number between 0 and 20.Decide with your partner whether the number is even or odd.Complete the equation to show your number as the sum of two equal addends. If you cannot use two equal addends, use two addends that are as close as possible.

Decide whether the number of dots is even or odd.

Decide whether the number of dots is even or odd.

Pick a number between 0 and 20.
Decide with your partner whether the number is even or odd.
Complete the equation to show your number as the sum of two equal addends. If you cannot use two equal addends, use two addends that are as close as possible.

Pick a number between 0 and 20.
Decide with your partner whether the number is even or odd.
Complete the equation to show your number as the sum of two equal addends. If you cannot use two equal addends, use two addends that are as close as possible.