Lesson 19, Sep 22, 2023 Divisions

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

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

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​Table Talk

Lesson Vocabulary

Multiplication

Decompose numbers

Array

8 x 4 = 32

Distribute property

Division

20 ÷ 2 = 10

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

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.

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

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

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.

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