12-NelsonMathGr5-Chap12
6/25/04
11:09 AM
Page 336
CHAPTER 12
You will need
2
Equivalent Fractions
Make models of fractions and
name equivalent fractions.
Goal
Reflecting
• grid paper
1. Use this fraction model to explain
how you know that 34 and 192 are
equivalent fractions.
• pencil crayons
2. How can you divide up this fraction
model to find another equivalent
fraction for 34?
Some food was left over after Liam’s party.
? What fractions are left?
Checking
Liam’s Fractions
I ate
I left
1
2
a sandwich. Grandad ate of a
2
4
1
2
. Grandad left . These amounts
2
4
3. Write two equivalent fractions for each picture.
How do you know your fractions are equivalent?
a)
b)
c)
sandwich.
are the same.
I can model the leftovers with a diagram.
I shade 12. I draw a line to make fourths.
1
—
2
2
—
4
my sandwich
Both
1
2
and
2
4
Grandad’s sandwich
represent the same amount of sandwich.
They are equivalent fractions .
1 = 2
2
4
1
2
is equivalent to 24.
Practising
equivalent
fractions
Fractions that
represent the
same part of
a whole or the
same part of
a set
The juice pitcher holds 12 glasses of juice.
There is half a pitcher of juice left.
I can model the pitcher by drawing a diagram with
12 sections. I shade 12 to show the leftover juice.
6
12
6
12
servings are left.
is equivalent to 12.
2
–
4
2
4
2
4
4. Model and write two equivalent fractions for the yellow part.
a)
b)
5. Write a fraction to represent the blue area in each rectangle.
Sketch a fraction model that shows an equivalent fraction
for each blue area. Write the equivalent fraction.
a)
b)
c)
1
–
2
is equivalent to 12.
12
6. Choose an animal sticker. Write two equivalent fractions
for that fraction of all the stickers.
6 =1
12 2
336
NEL
NEL
337
12-NelsonMathGr5-Chap12
6/25/04
11:09 AM
Page 336
CHAPTER 12
You will need
2
Equivalent Fractions
Make models of fractions and
name equivalent fractions.
Goal
Reflecting
• grid paper
1. Use this fraction model to explain
how you know that 34 and 192 are
equivalent fractions.
• pencil crayons
2. How can you divide up this fraction
model to find another equivalent
fraction for 34?
Some food was left over after Liam’s party.
? What fractions are left?
Checking
Liam’s Fractions
I ate
I left
1
2
a sandwich. Grandad ate of a
2
4
1
2
. Grandad left . These amounts
2
4
3. Write two equivalent fractions for each picture.
How do you know your fractions are equivalent?
a)
b)
c)
sandwich.
are the same.
I can model the leftovers with a diagram.
I shade 12. I draw a line to make fourths.
1
—
2
2
—
4
my sandwich
Both
1
2
and
2
4
Grandad’s sandwich
represent the same amount of sandwich.
They are equivalent fractions .
1 = 2
2
4
1
2
is equivalent to 24.
Practising
equivalent
fractions
Fractions that
represent the
same part of
a whole or the
same part of
a set
The juice pitcher holds 12 glasses of juice.
There is half a pitcher of juice left.
I can model the pitcher by drawing a diagram with
12 sections. I shade 12 to show the leftover juice.
6
12
6
12
servings are left.
is equivalent to 12.
2
–
4
2
4
2
4
4. Model and write two equivalent fractions for the yellow part.
a)
b)
5. Write a fraction to represent the blue area in each rectangle.
Sketch a fraction model that shows an equivalent fraction
for each blue area. Write the equivalent fraction.
a)
b)
c)
1
–
2
is equivalent to 12.
12
6. Choose an animal sticker. Write two equivalent fractions
for that fraction of all the stickers.
6 =1
12 2
336
NEL
NEL
337