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# Comparing Bits and Pieces: Investigation 1

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## Stephanie Leahey

on 11 February 2016

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#### Transcript of Comparing Bits and Pieces: Investigation 1

Comparing Bits and Pieces: Investigation 1
Things to revise for the test
Finding a fraction of an amount
e.g. What is 1/4 of 80? What i 3/4?
If I spend 1/4 of \$100, how much money do I have left?
Writing comparative sentences
Labeling a ruler/thermometer with equal fractions
Finding equivalent fractions
Comparing different fractions of amounts (Problem 1.5)

1.1 Comparing with Fractions and Ratios
L.O: To be able to compare amounts using fractions and ratios.
Do Now!
Talk to the person next to you about a time that you raised money for a cause.
How much money did you raise?
How much more or less did you raise than the person sitting next to you?
Could you write a comparative sentence about the money you raised and the money raised by the person next to you.
Could you compare the amounts using a ratio or a fraction?
1.1 Comparing with Fractions and Ratios
L.O: To be able to compare amounts using fractions and ratios.
1.1 Comparing with Fractions and Ratios
L.O: To be able to compare amounts using fractions and ratios.
1.1 Comparing with Fractions and Ratios
L.O: To be able to compare amounts using fractions and ratios.
1.2 Fundraising Thermometers
L.O: To be able to compare amounts using basic ratios
Page 27, questions 1-5
True
True
True
True
True
True
False
Remember:
Get out a new piece of graph paper.
Write the date, title, margin, learning objective.
Write the question and answer.
Draw a line between each question.
Use a ruler.
6th grade = \$300
8th grade = \$150
300 - 150 = \$150
1/3 of the 7th grade total = \$150
2/3 of the 7th grade total = \$300
\$300 ÷ 2 = \$150
8th grade : 6th grade
1
:
2
\$150
:
\$300
6th grade : 7th grade
60
:
90
300
:
450
The 6th grade goal is double the 8th goal.
For every \$1 the eighth grade plans to raise, the seventh grade plans to raise \$3.
\$120
\$180
\$210
\$240
\$270
\$45
\$135
\$180
\$225
\$270
\$90
\$315
\$405
\$360
\$15
\$45
\$60
\$75
\$90
\$30
\$105
\$135
\$120
\$36
\$108
\$144
\$180
\$216
\$72
\$252
\$324
\$288
1.2 Fundraising Thermometers
L.O: To be able to compare amounts using basic ratios
1.2 Fundraising Thermometers
L.O: To be able to compare amounts using basic ratios
\$60
:
\$90
\$30
:
\$45
÷ 2
÷ 2
See previous slide
A)
B)
1.
2.
Page 28, Questions 10 and 11
Page 35, Questions 41 to 41-44
1.2 Fundraising Thermometers
L.O: To be able to compare amounts using basic ratios
Do Now!!
Page 27, questions 1-5
Remember:
Get out a
new
piece of graph paper.
Write the
date, title, margin, learning objective.
Write the question and answer.
Draw a line between each question.
Use a ruler.
Homework!
Due Monday
1.3 On the line
L.O: To be able to identify equivalent fractions on the number line
Teachers
?
+ \$210
\$510
\$560
\$360
5
5
5
5
5
5
=
=
=
\$700
\$450
1.1 Comparing with Fractions and Ratios
Do Now!
0
1
Mark as many fractions as you can on this number line.
1.3 On the line
L.O: To be able to identify equivalent fractions on the number line
1.3 On the line
L.O: To be able to identify equivalent fractions on the number line
1.3 On the line
L.O: To be able to identify equivalent fractions on the number line
1.3 On the line
L.O: To be able to identify equivalent fractions on the number line
Page 29, Questions 12 and 15
Page 30, Questions 16 - 20
1.4 Measuring progress
L.O: tO BE ABLE TO FIND FRACTIONAL PARTS
1.4 Measuring progress
L.O: tO BE ABLE TO FIND FRACTIONAL PARTS
dO NOW!
mATCH EACH FRACTION WITH IT´S EQUIVALENT FRACTION
1
2
5
9
2
5
2
3
3
10
3
4
3
7
9
30
6
8
4
10
6
9
6
14
10
18
4
8
1.4 Measuring progress
L.O: tO BE ABLE TO FIND FRACTIONAL PARTS
1.3 On the line
L.O: To be able to identify equivalent fractions on the number line
Do Now!
1
2
1
9
1
5
1
3
1
10
1
4
1
7
0
1
1
6
Put the fractions in the right place on the line
Can you come up with a rule to help you remember what order to put the fractions in?
Find an EQUIVALENT fraction for each of the fractions
1.5 Comparing Fundraising goals
L.O: tO BE ABLE TO use fractions and ratios
1.5 Comparing Fundraising goals
L.O: tO BE ABLE TO use fractions and ratios
1.5 Comparing Fundraising goals
L.O: tO BE ABLE TO use fractions and ratios
1.4 Measuring progress
L.O: tO BE ABLE TO FIND FRACTIONAL PARTS
Do Now!
1) If Miss Leahey eats 3/5 of the cake, how much is left for the rest of the class.
2) Can you represent these fractions in a ratio. E.g. For every...
3) If Miss Leahey eats 1/10 of the pizza and Mr Karman eats 2/5, how much is left for the rest of the class?
4) Can you represent these fractions in a ratio. E.g. For every...
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