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Graphs
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How to set up successful graphs
in Mrs. Gionta’s class!
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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How to set up your graph!
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X Axis
(This is for your
independent variable)
What is a dependant and
independent variable?
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Independent Variable
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– something that is changed by the scientist
– What is tested
– What is manipulated
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Dependent Variable
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– something that might be affected by the
change in the independent variable
– What is observed
– What is measured
– The data collected during the investigation
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TAILS
Teacher'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
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Make sure you label the axis.
Include units !!!
X Axis =
Independent
Variable
Example: (years) (cm) (oz)
TAILS
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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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TAILS
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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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S – Scale
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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T – Title
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A – Axis
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5
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I – Interval
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S – Scale
TAILS
Teachers’s Favorite Singer
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Number of Teachers
25
T – Title
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15
A – Axis
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5
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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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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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Test Tuesday
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Steps of Scientific Method
Write an “If …. then…..” Hypothesis
Why do we use the scientific method
Study note packet from metric mania
What does TAILS stand for?
Be able to graph.
Know when to use a bar graph vs. line graph
Vocabulary
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