The Properties of Multiplication

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The Properties of Multiplication:

The Properties of Multiplication Elizabeth Hill Third Grade

Can you match the multiplication facts to the pictures?:

Can you match the multiplication facts to the pictures? 5x3= 4x3= 3x8= 4x7=

What are we learning?:

What are we learning? The State of Georgia says M3N3e Students will apply the identity, commutative and associative properties of multiplication and verify the results.

In Kid Terms:

In Kid Terms I understand and can use the properties of multiplication.

Slide 5:

The Properties of Multiplication The Properties are the rules of multiplication and make problems easier. 1. Commutative Property – It doesn’t matter what order you multiply 2 numbers the answer is always the same. Ex: 2x3=3x2 2. Associative Property – When you multiply 3 or more numbers together, it doesn’t matter how you group them. The answer will be the same. Ex:(4x7)x6=4x(7x6) 3. Identity Property – When multiplying a number by 1, the answer will always be that number. Ex: 7x1=7

Commutative Property:

Commutative Property Get out your manipulative box. Open the box and get out the colored squares. Close the box and put it away. Let’s get ready to build some arrays.

Commutative Property:

Commutative Property Make an array to represent 2x6 2 rows of 6 Can you show the same problem a different way? So we can say that 2x6=6x2 6 rows of 2

Commutative Property:

Commutative Property Make an array to represent 3x5 3 rows of 5 Can you show the same problem a different way? So we can say that 3x5=5x3 5 rows of 3

Commutative Property:

Commutative Property Make an array to represent 3x4 3 rows of 4 Can you show the same problem a different way? So we can say that 3x4=4x3 4 rows of 3

Make 2 arrays that show the Commutative Property:

Make 2 arrays that show the Commutative Property Your Turn! When your finished, raise your hand to show me and get some practice.

Day 2:

Day 2

What are we learning?:

What are we learning? The State of Georgia says M3N3e Students will apply the identity, commutative and associative properties of multiplication and verify the results.

In Kid Terms:

In Kid Terms I understand and can use the properties of multiplication.

Slide 15:

What is another word for friend?:

What is another word for friend? Peer Buddy Pal Associate

Associative Property:

Associative Property When I think about the associative property, I think about the Jonas Brothers. The 3 of them are always together. When you see 2 of them together, the other is somewhere near. + + No matter which 2 you see first, you will still have the Jonas Brothers. =

Associative Property:

Associative Property (2x3)x5= 2x 3x5 What are the numbers you should write on the other side? Where should the parentheses go to show what to associate? ( ) What 2 numbers are being associated?

Associative Property:

Associative Property (6x8)x2= 6x 8x2 What are the numbers you should write on the other side? Where should the parentheses go to show what to associate? ( ) What 2 numbers are being associated?

Associative Property:

Associative Property 1x(9x4)= 1x9 x4 What are the numbers you should write on the other side? Where should the parentheses go to show what to associate? ( ) What 2 numbers are being associated?

Associative Property:

Associative Property 5x(2x6)= 5x2 x6 What are the numbers you should write on the other side? Where should the parentheses go to show what to associate? ( ) What 2 numbers are being associated?

Day 3:

Day 3

What are we learning?:

What are we learning? The State of Georgia says M3N3e Students will apply the identity, commutative and associative properties of multiplication and verify the results.

In Kid Terms:

In Kid Terms I understand and can use the properties of multiplication.

Slide 27:

Identity:

Identity Your identity is who you are. Who you are doesn’t change. You are always you. No matter how you change (clothes, hair, size), you are always you.

Identity:

Identity Peter Parker puts on a costume & becomes Spiderman. But underneath the Spidey suit, he is still Peter Parker. His identity did not change.

Identity:

Identity Miley Cyrus puts on a wig & becomes Hannah Montana. But underneath the blonde wig, she is still Miley Cyrus. Her identity did not change.

Identity Property:

Identity Property The identity property is the rule of what makes a number stay the same or keep its identity. Identity Property of Addition What number do you add to 5 to make it stay 5? 0 5+0=5 When you add 0 to 5, 5 keeps its identity.

Identity Property:

Identity Property Identity Property of Multiplication What number do you multiply by 5 to make it stay 5? 1 5x1=5 When you 1 by 5, 5 keeps its identity.

Identity Property:

Identity Property Identity Property of Multiplication What number do you multiply by 8 to make it stay 8? 1 8x1=8 When you 1 by 8, 8 keeps its identity.

Slide 34:

What are some other examples?

Slide 35:

Work with your partner to write 10 other examples of the identity property of multiplication. Get creative!

Day 4:

Day 4

What are we learning?:

What are we learning? The State of Georgia says M3N3e Students will apply the identity, commutative and associative properties of multiplication and verify the results.

In Kid Terms:

In Kid Terms I understand and can use the properties of multiplication.

Slide 39:

Properties Game:

Properties Game

Proper Multiplication Properties:

Proper Multiplication Properties 1. Create a book about the properties of multiplication. 2. On cover, write title for book and your name. 3. First page should be about the commutative. Tell what it is and give 3 examples. 4. On the next page show the associative. On the next show identity. Make sure there is a definition and 3 examples for each. 5. It must be checked and approved before you can use crayons.