Upload
mre
View
233
Download
0
Embed Size (px)
Citation preview
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
1/17
The Number SystemDay 3VAN SICLEN COMMUNITY MIDDLE SCHOOL
MR. EGRADE 6 MATHEMATICS
CLASS 602/603/604/605
OCTOBER 31, 2014
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
2/17
www.tinyurl.com/vscmath57
TODAYS LESSON LINK!
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
3/17
Do Now5 minutes
A) How many1
miles are in 5
miles? Use a model.
Mr. E ate 6 strawberry cupcakes.
this is
of the number of strawber
cupcakes he made, how manycupcakes did he make in all? Usea model.
6 is
of _________.
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
4/17
Lesson Overview
So far in Unit 2, we have beencovering a good amount of topicsat a good pace!
We have covered fractionsdivided by a whole number andwhole numbers divided byfractions, and how to rewrite theseproblems as multiplication!
Visual models are VERYhelpful forthese types of questions. Pleaseuse them if you are having trouble!
Today we will learn about dividingfractions by fractions using visualmodels!
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
5/17
More Models. 2.5 minutes
Draw a model to represent 15 3. This can be done in more thanone way!
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
6/17
15 3
3
PWn(tag
Measurement DWe have a tonumber (15) anare forming gro5. How many grof 5 can we for
5
How can we re-word this
question?2 minutes
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
7/17
Dividing Fractions by Fractions5 min
What is
? Take a minute to use what you know about division to
create a modelto represent this division problem.
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
8/17
Hint: Another way to think of this question is to say How many
a
?
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
9/17
How many
are in
?
2
7
2
7
2
7
I can see that we have 3 groups of
in
, so the answer is 3.
There are three
s in
. This is the same as 6 2 to get 3.
6
7
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
10/17
Lets Try Again. 5 min
What is
? Take a minute to think about the last question, and
use what you know about division to create a modelto solve thisquestion.
Remember: We are dividing
by
.
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
11/17
How many
are in
?
2
9
2
9
2
9
I can see that we have 4 groups of
in
, so the answer is 4.
There are four
s in
. This is the same as 8 2 to get 4.
8
9
2
9
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
12/17
Lets Try Again. 5 min
What is
? Take a minute to think about the last question, and
use what you know about division to create a modelto solve thisquestion.
Remember: We are dividing
by
.
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
13/17
How many
are in
?
3
9
Uh oh Mr. E.. What nowis a remainder of 1.
I can see that we have 2 whole groups of
in
, but there is 1
piece remainingHow do we represent the remainder?
7
9
3
9
Answer: This is 1 out of 3 pieces we need to make another
. So the
remainder is1
. This means that
= 2
1
. This is the same as 7 3.
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
14/17
A Different look at 7 3.
One group of 3 Another group of 3 1 out of 3 that weneed to makeanother group of
3. So this is1
.
7 3 is 21
.
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
15/17
Dividing Fractions by Fractions3 minute
A) How many fourths are in three-fourths? Draw a model to support your an
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
16/17
Dividing Fractions by Fractions10 minut
Solve the following questions by drawing a model.
A) 45
5
B)
4
4
C)
D)1
10
10
E)11
8/10/2019 Lesson #19 - Dividing Fractions by Fractions
17/17
HomeworkDue Monday Nov 3, 20
Solve the following questions by drawinga model.
A)15
4
4
B)
5
5
C)
D)
4
4