Gr_4_Option_1_Unit_6_Powerpoint

Unit 6

Harvey is having a birthday party. He
knows that all of his friends love pizza.
He invites 3 three friends to his party.
How should Harvey cut his pizza so that
everyone gets the same amount?
Right after Harvey cut his pizza into 4 slices
the doorbell rings!! Four more friends show
up to Harvey’s party. How can Harvey make
sure everyone has an equal slice now?


How many slices are left?
1
1
1
3
+ + =
8
8
8
8
• What fraction of the pizza is cheese?
4
• or ½
8
• Write the fraction as the sum of unit fractions
1
1
1
1
4
• + + + =
8
8
8
8
8
0
1
4
2
4
3
4
4
4
1 whole
Our parking lot looks just like a number line!
We can use it to help us with fractions.
What if Harvey takes up more than one space?
0
¼+¼+¼=¾
1
4
2
4
3
4
4
4
1 whole
0
1
4
2
4
Bellville ISD
3
4
1
0
1
4
2
4
Bellville ISD
3
4
1
1
4
2
4

Use smartboard lesson.

Now let’s try it without the table!
½
= ?
 What could we multiply both numbers by?
 Let’s try 2
▪ 1x2=2
▪ 2x2=4…….. 2/4
12
30


4
6
3
9
Sam has 6/8 of the charge left on his phone. He
uses 2/8 of the charge playing a game. What
fraction of charge does he have left?

Kylie made 12 chocolate chip cookies.
She gave 2 cookies to her friend Ally
and 7 cookies to her teacher. What
fraction of cookies did Kylie give away?

Jackson had 8 slices of pizza. He ate 3
slices during lunch. What fraction of
pizza does Jackson have left to share
with his friends?

Ayme has a coin collection. She has twenty
coins in her collection. Ayme has 6 quarters
that were printed in 1950 and 7 pennies that
were printed in 1950. What fraction of
Ayme’s collection was printed in 1950?

Today you will take a fraction assessment.
Good luck and try your best!

Brainstorm with your table.
What is a factor????

A factor is what you multiply to get a
product

12 x 4 = 48

Factor
factor
product

List the factors of 12:
1x12 2x6 3x4

1,2,3,4,6,12….everyone has a buddy!


Factors of 20

Factors of 35

Multiples: multiples of a whole number
are found by taking the product of any
counting number and that whole number.
 Think skip counting!!
▪ 2: 2, 4, 6, 8, 10, 12…….




Find the multiples of …..
8:
10:
12

An ice cream truck visits Lisa’s
neighborhood every 4 days during the
summer. Unfortunately, she missed it
today. When can Lisa expect the ice
cream truck to visit her neighborhood
again?

The Least Common Multiple: the
smallest multiple that two products
share
Example
Multiply
Multiple:
Solution:
Find the multiples of the whole number 4.
4x1
4x2
4x3
4x4
4x5
4x6
4x7
4x8
4
8
12
16
20
24
28
32
The multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32,...

Find the LCM of…..

10 and 12

14 and 24

10 and 15

Mrs. Hernandez waters one of her
plants every 10 days and another plant
every 14 days. If she waters both
plants today, when is the next time
both plants will be watered on the same
day?
Harvey loves football. He wants to have a pizza party for
the big Houston Texans vs. Dallas Cowboys game. He
orders two pizzas. He notices that Papa John’s cut the
pepperoni pizza into 8 slices and the sausage pizza into 6
slices. If Harvey ate 4 slices of pepperoni and his friend
ate 4 slices of sausage, who ate more pizza? Discuss with
your table.