Math Module 1 Lesson 16 Use 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 x 7 = 28 28

Skip Count By 2s To 20 … Skip Count by 3s to 30 … Skip Count

Tape Diagram Review Write an addition sentence for this tape diagram: = 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: x 8 = 16

Problem of the Day Ms. Williams seats students in 4 rows of 7 when she teaches at Board 1: XXXXXXX 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 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 = = 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 4 Discuss with your neighbor: Why did we use 5 x 4 to solve all three problems?

Concept Development And the answer is ….. Because 5s are 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. True

PROBLEM SET… The key is in how YOU look at it!