what are the three ways we organize data? tables charts graphs
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Get your folder If you need to FINISH YOUR GRAPHS from yesterday. If you are finished pick up the worksheets on the front desk and get to work. 4/26/2017TRANSCRIPT
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Bellringer
What are the three ways we organize data?TablesCharts Graphs
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Get your folder If you need to FINISH YOUR
GRAPHS from yesterday.
If you are finished pick up the worksheets on the front desk and get to work.
05/03/23 2
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Objective
We will learn and practice organization of experimental
data, graphing.
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Today I want you to help me make a graph.
I want to make a graph that shows the change in temperature throughout the day yesterday.What kind of graphs could we make to show this?
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Bar Graph vs Line Graph
What is the difference between a bar graph
and a line graph?
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Bar Graph A graph consisting of parallel,
usually vertical bars or rectangles that compares data
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Line Graph A line graph is a graph used to show change over time!!
What can time be measured in???Seconds - Minutes - Hours – Days - Weeks - Months – Years - Decades -
Centuries - etc.
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When to use a line graph? Would we use a line graph
in the following situations:•To show how many people like pizza in this class? NO
•To show how many people live in East Meadow? NO
•To show how much it rained each month this year? YES- because months and years deal with time.
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Birthdays?
Our birthday does deal with time doesn’t it? (months/years)
But, our birthday is constant, meaning it never changes.
A line graph shows change in time, so we would not use it for this type of graph.
Would we use a line graph to show when our birthdays are?
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How do we make a line graph?
A line graph ALWAYS has a title!
A line graph has two different axis’s
An axis is either the horizontal line (called x) or the vertical line (called y) that form the base lines of a graph.
Y
X
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YOU TELL ME….
What color is the y-axis?
What color is the x-axis?
Y
X
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X-axis and Y-axis When you are making a line graph, the
x-axis is always horizontal, and the y-axis is always vertical.
The x and y-axis usually starts with zero on a line graph
It is important to make sure that the intervals on our y-axis are always equal.
What do I mean by this?
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Intervals When we are setting up a line graph, we
need to decide what intervals we want to use.
If we are graphing the temperature for a year, do we want to put 365 days on the graph, and 100 different temperatures?
When we see a horizontal flat line, that means that there was no change during a specific time period.
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Plotting a Line graph When we are plotting a line graph, it is
important to read what information is on each axis.
There must be a label on each axis that describes the information.
Much like a bar graph, we look at the x-axis first in order to plot our points.
Time in minutes
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Is this an acceptable graph?
Time
Car Trip
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What information do you need to interpret a graph?
•The graph we just looked at does not have any numbers on the x-axis or the y-axis.
•Can we still draw conclusions and answer questions about that graph?
•How many times did the driver stop driving during the trip?Time
Car Trip
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Practice With Graphs
•Please study the graphs that you have and answer the questions. •Then we will discuss your answers.
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Money spent this week
$0.00
$5.00
$10.00
$15.00
$20.00
$25.00
Mon. Tues. Wed. Thurs. Fri.
Day
Am
outn
of $
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Q & A Which day did this person spend the most money? How do you know?
This person spent the most money on Wednesday. I know this because the graph is the highest on Wednesday.
About how much money in total did this person spend on Monday and
Thursday? How do you know?This person spent about $9.00 on
Monday and Thursday. I know this because I looked at where the line was for Monday and Thursday and added
the two amounts.
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Miles traveled during the week
010203040506070
Mon. Tues. Wed. Thurs. Fri. Sat. Sun.
Days
Mile
s Tr
avel
ed
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Q & AHow many days did this person travel less than 30 miles?
Which day did the driver travel the least amount of miles?
Why might someone want to keep track of their miles for the week?
5 days
Sunday
To figure out how much gas they need a week.
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U.S. Corn in Acres
55
60
65
70
75
80
85
Years
Acre
s of
cor
n (in
mill
ions
)
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Q & A About how much corn did the U.S. have in 1991?
What does the y-axis represent in the graph?
Can you think of another title for this graph?
About 77 million acres
The rise and fall of corn in the U.S.
Acres of corn in millions.
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Make your own….. •Now that you have had time to interpret graphs, I would like you to make your own graphs.•Remember to read the information carefully and label everything!
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Graph The show sizes of the students in our class.
Collect the data on the shoe sizes all students in our class and put into a table.
What type of graph would be best? How could we divide the data?
Construct your graph.
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HomeworkThe boiling point of water.
Construct a data table that records the temperature of water every minute until it reaches the boiling point and then for 5 minutes after boiling.
Graph the data.
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Ticket OutThe boiling point of water.
You are given a data table that records the temperature of water every minute until it reaches the boiling point and then for 5 minutes after boiling.
1. What type of graph would be best for this information?
2. What is the independent variable and what is the dependent variable?