
Lesson 19, Sep 22, 2023 Divisions
Presentation
•
Mathematics
•
3rd Grade
•
Practice Problem
•
Easy
Standards-aligned
Juan Vizcarra
Used 40+ times
FREE Resource
9 Slides • 7 Questions
1
Labelling
Do Now
1. Look at the division on the arrays.
Complete the division sentences.
3
= 3
6
2
Match
Do Now
2. Match the following divisions
(20÷2) + (8÷2)
(30÷3) + (3÷3)
(30÷3) + (6÷3)
(20÷2) + (6÷2)
(20÷2) + (8÷2)
(30÷3) + (3÷3)
(30÷3) + (6÷3)
(20÷2) + (6÷2)
3
4
Labelling
Use the keywords to complete our Learning Objective.
arrays
represent
decomposing
multiplication
5
Discuss with your partner what are you going to learn today.
Sentence Stem: "Today I am going to learn..."
Table Talk
6
Lesson Vocabulary
Multiplication
Decompose numbers
Array
8 x 4 = 32
Distribute property
Division
20 ÷ 2 = 10
7
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
10
8
5
÷2
4
(8
2
9
9
Drag and Drop
Decompose 22 in 10 and 12, because 10 + 12 = 22
Now I am going to divide each one of the numbers by 2:
(10 ÷
10
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
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:
10
20
13
3
2
6
13
Labelling
Complete the Division Sentences
9
15
12
=4
5
= 5
4
14
Student Guide
Activity
Problem Set
Learn Book Pg. 105 - 106
15
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.
16
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. Look at the division on the arrays.
Complete the division sentences.
= 3
6
3
Show answer
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LABELLING
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