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Lesson 19, Sep 22, 2023 Divisions

Lesson 19, Sep 22, 2023 Divisions

Assessment

Presentation

Mathematics

3rd Grade

Practice Problem

Easy

CCSS
4.NBT.B.6, 4.NBT.B.5, 5.NBT.B.6

Standards-aligned

Created by

Juan Vizcarra

Used 40+ times

FREE Resource

9 Slides • 7 Questions

1

Labelling

Do Now

  1. 1. Look at the division on the arrays.

Complete the division sentences.

Drag labels to their correct position on the image

= 3

6

  • 3

2

Match

Do Now

  1. 2. Match the following divisions

(20÷2) + (8÷2)

(30÷3) + (3÷3)

(30÷3) + (6÷3)

(20÷2) + (6÷2)

3

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4

Labelling

Use the keywords to complete our Learning Objective.

Drag labels to their correct position on the image

represent

decomposing

multiplication

arrays

5

Discuss with your partner what are you going to learn today.

Sentence Stem: "Today I am going to learn..."

Table Talk

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6

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Lesson Vocabulary

Multiplication

Decompose numbers

Array

8 x 4 = 32

Distribute property

Division

20 ÷ 2 = 10

7

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Decompose and Divide

12 ÷ 2 = __

Decompose 12 in 10 and 2, because 10 + 2 = 12

Now, I am going to divide each one of the numbers by 2:

(10 ÷ 2) + (2 ÷ 2) = ___

5 + 1 = 6

8

Labelling

Complete the division sentences

Drag labels to their correct position on the image

10

9

4

  • (8

÷2

2

8

5

9

Drag and Drop

22 ÷ 2 = ____


Decompose 22 in 10 and ​12, because ​10 + 12 = 22



Now I am going to divide each one of the numbers by 2:



(10 ÷
) + (
÷ 2) = ____


​ + ​
= ​
Drag these tiles and drop them in the correct blank above
2
12
5
6
11

10

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Concept Development

White board

Let’s use this array to help us solve

24 ÷ 2 = ____.

(20 ÷ 2) = 10

(4 ÷ 2) = 2

How many twos are above the line?

How many twos are below the line?

10 twos

2 twos

First, let’s write division equations to represent the part of the array above the line and the part of the array below the line.

11

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Concept Development

White board

Let’s use this array to help us solve

24 ÷ 2 = ____.

(20 ÷ 2) = 10

(4 ÷ 2) = 2

First, let’s write division equations to represent the part of the array above the line and the part of the array below the line.

Write this as the addition of two divisions

(20 ÷ 2) + (4 ÷ 2) = ___

10 + 2 = 12

Then, 24 ÷ 2 = 12

12

Labelling

Complete the Division Sentences:

Drag labels to their correct position on the image

2

20

13

10

3

6

13

Labelling

Complete the Division Sentences

Drag labels to their correct position on the image

12

15

= 5

5

9

=4

4

14

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Student Guide
Activity
Problem Set
Learn Book Pg. 105 - 106

15

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Student Debrief

Yesterday, we used the break apart and distribute strategy with multiplication. How is the method we learned today
similar?

* Think, Pair, Share:
Table Talk.

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16

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Demonstration Of
Learning

Given problems, I will determine a quotient using a model and the
relationship between multiplication and division of 4 correctly on 4 of 5
questions.

Quizizz: DOL 19

Do Now

  1. 1. Look at the division on the arrays.

Complete the division sentences.

Drag labels to their correct position on the image
  • 3

= 3

6

Show answer

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LABELLING