Transcript Graphs - Images

Bell Ringer
Wednesday January 21, 2015
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• Copy and answer the following:
1. During a storm, rainwater depth is measured every 15 minutes. Which of these
terms describes the depth of the water?
A. constant variable
B. dependent variable
C. independent variable
D. significant variable
2. In a controlled experiment,
A. the outcome is controlled.
B. one variable is fixed while all others are changed.
C. one variable is changed while all others remain fixed.
D. results are obtained by computer models.
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Graphs
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How to set up successful graphs
How to set up your graph!
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How to set up your graph!
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Y Axis
(This is for your
dependent variable)
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4
How to set up your graph!
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X Axis
(This is for your
independent variable)
TAILS
Teachers’s Favorite Singer
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T - Title
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TAILS
Teachers’s Favorite Singer
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T - Title
A - Axis
Y Axis =
Dependent
Variable
X Axis =
Independent
Variable
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TAILS
Teachers’s Favorite Singer
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Decide on an appropriate
scale for each axis.
T - Title
Choose a scale that lets
you make the graph as
large as possible for your
paper and data
A – Axis
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S – Scale
How to determine scale
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Favorite
Number of
Singer
Teachers
Toby Keith
22
Madonna
15
Elvis
11
Sting
5
Sinatra
2
• Scale is determined
by your highest &
lowest number.
• In this case your
scale would be from
2 – 22.
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How to determine Intervals
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Favorite
Number of
Singer
Teachers
Toby Keith
22
Madonna
15
Elvis
11
Sting
5
Sinatra
2
• The interval is decided
by your scale.
• In this case your scale
would be from 2 – 22
and you want the scale
to fit the graph.
• The best interval
would be to go by 5’s.
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TAILS
Teachers’s Favorite Singer
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The amount of space between one
number and the next or one type of
data and the next on the graph.
The interval is just as important as
the scale
Choose an interval that lets you
make the graph as large as possible
for your paper and data
T – Title
A – Axis
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I – Interval
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4
S – Scale
TAILS
Teachers’s Favorite Singer
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T – Title
20
15
A – Axis
10
5
0
1
I – Interval
2
4
S – Scale
TAILS
Teachers’s Favorite Singer
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Number of Teachers
25
T – Title
20
15
A – Axis
10
5
0
LABEL your bars or
Singers
data points
Give
Labelthe
your
bars
Y aAxis.
general
What
label.
do those
What
do those
numbers
words
mean?
mean?
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I – Interval
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4
L – Labels
S – Scale
When to use…
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• Bar graphs
– Used to show data that are not continuous.
– Allows us to compare data like amounts or
frequency or categories
– Allow us to make generalizations about the data
– Help us see differences in data
• Line Graphs
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– For continuous data
– useful for showing trends over time
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Sample Data Table
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010011011Week
Week
2
Week 3
Week 4
White 1
15cm
16cm
16cm
16.5cm
White 2
20cm
21cm
21.5cm
22.3cm
Green 1
16cm
16cm
18cm
Green 2
15cm
15.5cm
17cm
Red 1
17cm
17cm
18.4cm
Red 2
16cm
16.1cm
16.5cm
17cm
Blue 1
20cm
20cm
23cm
23.5cm
Blue 2
21cm
22cm
22.3cm
22.8cm
1
2
18.1cm
19cm
4
18.5cm
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Sample Graph
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Growth of Plants
25
20
1
Height (cm)
15
10
5
0
White 1
White 2
Green 1
Green 2
Color of Light
Red 1
Red 2
2
4
Blue 1
Blue 2
Week 1
Week 2
Week 3
Week 4
Sample Graph
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Total Growth of Plants
25
1
20
15
Growth (cm)
Week 1
Week 3
Week 4
10
2
4
Week 2
Total Grow th (cm)
5
0
White 1
White 2
Green 1
Green 2
Color of Light
Red 1
Red 2
Blue 1
Blue 2
Sample Graph
Average Growth
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3.5
3
1
2.5
2
Average Height Gain (cm )
1.5
1
0.5
0
White
Green
Red
Color of Light
2
4
Blue
Series1