Math Module 1 Lesson 16 Use the Distributive Property to find related multiplication facts.
Welcome message from author
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Math Module 1Lesson 16Use the Distributive Property to find related multiplication facts.
Multiply by 4 Pattern Sheet
2 minutes
End
4 x 7 = Let’s skip-count to solve.
Skip Count by 4s
48
12
16
20 24
4 x 7 = 28
28
Skip Count By 2s To 20 … 2 4 6 8 10 12 14 16 18 20
Skip Count by 3s to 30 … 3 6 9 12 15 18 21 24 27 30
Skip Count
Tape Diagram Review
Write an addition sentence for this tape diagram:
8 + 8 = 16
Tape Diagram Review
Write a multiplication sentence for this tape diagram:
2 x 8 = 16
Tape Diagram Review
Write a multiplication sentence for this tape diagram:
8 16
2 x 8 = 16
Problem of the Day
Ms. Williams seats students in 4 rows of 7when she teaches at Board 1:
XXXXXXXXXXXXXXXXXXXXXXXXXXXX
4 x 7
Use the Commutative Property to show how she seats them when she teaches at Board 2.
Problem of the Day
Board 2:
XXXX XXXX
XXXXXXXXXXXXXXXXXXXX
7 rows of 4!7 x 4
Problem of the Day
Bonus!!!
On Monday 6 students are absent. How many students are in Ms. Williams class on Monday?
4 x 7 = 2828 - 6 = 22
There are 22 students in class on Monday!
Concept Development
♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞
Talk to your partner about how to box an array that shows:
(5 x 4) + (1 x 4)
What fact does the whole array represent?
6 x 4
Concept Development
♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞
Talk to your partner about how to box an array that shows:
(5 x 4) + (2 x 4)
What fact does the whole array represent?
7 x 4
Concept Development
♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞♞
Talk to your partner about how to box an array that shows:
(5 x 4) + (4 x 4)
What fact does the whole array represent?
9 x 4
Concept Development
What math fact did we use to solve all 3 problems?
5 X 4Discuss with your neighbor: Why did we use 5 x 4 to solve all three problems?
Concept Development
And the answer is …..
Because 5sare easy to solve!
Concept Development
☯☯☯
☯
☯☯☯
☯
☯☯☯
☯
☯☯☯
☯
☯☯☯
☯
☯☯☯
☯
☯☯☯
☯
☯☯☯
☯
What multiplication fact does this array represent?
8 x 4
Use the 5s strategy to solve this problem
8 fours
5 fours
3 fours
True or False: In 5 x 4 & 3 x 4 the size of the groups is the
same.
True20 12
32
PROBLEM SET…The key is in how YOU look at it!
Related Documents
