Eureka Math
3rd Grade
Module 3
Lesson 9
At the request of elementary teachers, a team of Bethel & Sumner educators met as a committee to create Eureka slideshow presentations. These presentations are not meant as a script, nor are they required to be used. Please customize as needed. Thank you to the many educators who contributed to this project!
Directions for customizing presentations are available on the next slide.
(S) Application Problems Sheet
(S) Personal white board
Materials List
Customize this Slideshow
Reflecting your Teaching Style and Learning Needs of Your Students
Screen A
“pop-out”
Screen B
Icons
Read, Draw, Write
Learning Target
Think Pair Share
Individual
Partner
Whole Class
Small Group Time
Small Group
Personal White Board
Problem Set
Manipulatives Needed
Fluency
I can model the associative property as a strategy to multiply.
Divide by 6 and 7
Write a × 6 = 12
On your personal white board, write the value of a.
Divide by 6 and 7
Write a × 6 = 30
On your personal white board, write the value of a.
Divide by 6 and 7
Write b × 6 = 24
On your personal white board, write the value of b.
Divide by 6 and 7
Write c × 6 = 36
On your personal white board, write the value of c.
Divide by 6 and 7
Write d × 6 = 60
On your personal white board, write the value of d.
Divide by 6 and 7
Write e × 6 = 54
On your personal white board, write the value of e.
Divide by 6 and 7
Write f × 7 = 35
On your personal white board, write the value of f.
Divide by 6 and 7
Write g × 7 = 28
On your personal white board, write the value of g.
Divide by 6 and 7
Write h × 7 = 42
On your personal white board, write the value of h.
Divide by 6 and 7
Write j × 7 = 70
On your personal white board, write the value of j.
Divide by 6 and 7
Write k × 7 = 56
On your personal white board, write the value of k.
Group Counting
Eights to 80
Nines to 90
Write In the Parentheses
Write 10 – 5 + 3 = 8
On your board, copy the equation.
Then, insert parentheses to make the statement true
Write In the Parentheses
Write 10 – 5 + 3 = 2
On your board, copy the equation.
Then, insert parentheses to make the statement true
Write In the Parentheses
Write 10 = 20 – 7 + 3
On your board, copy the equation.
Then, insert parentheses to make the statement true
Write In the Parentheses
Write 16 = 20 – 7 + 3
On your board, copy the equation.
Then, insert parentheses to make the statement true
Write In the Parentheses
Write 8 + 2 × 4 = 40
On your board, copy the equation.
Then, insert parentheses to make the statement true
Write In the Parentheses
Write 8 + 2 × 4 = 40
On your board, copy the equation.
Then, insert parentheses to make the statement true
Write In the Parentheses
Write 12 = 12 ÷ 2 × 2
On your board, copy the equation.
Then, insert parentheses to make the statement true
Write In the Parentheses
Write 3 = 12 ÷ 2 × 2
On your board, copy the equation.
Then, insert parentheses to make the statement true
Write In the Parentheses
Write 10 = 35 – 5 × 5
On your board, copy the equation.
Then, insert parentheses to make the statement true
Write In the Parentheses
Write 20 – 10 ÷ 5 = 2
On your board, copy the equation.
Then, insert parentheses to make the statement true
Application Problem
Concept Development
Write 16 × 3 =
This could be difficult to solve, work with your partner to list factors that have a product of 16. Write them on your personal white board.
4, 8, and 2 are much friendlier factors than 16.
Factors
4 x 4 = 16
8 x 2 = 16
Concept Development
(8 × 2) × 3
Why do you think I put 8 × 2 in parentheses?
8 × (2 × 3) =
8 x 6 = 48
Concept Development
15 x 3 =
Problem Set
Student Debrief
Lesson Objective: Model the associative property as a strategy to multiply.
In Problem 1, how do the problems on the
bottom simplify the problems on the top?
In Problem 3, how did Charlotte simplify?
How are the commutative property and this new
strategy helpful for finding unknown, larger
Facts?
How did the Application Problems relate to the
lesson today?
Exit Ticket