warm up 1.what does the data to the right tell you? 2.are there any trends that you notice about...
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Warm Up
1. What does the data to the right tell you?
2. Are there any trends that you notice about plant height?
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DATAThe average plant height on day 0 was 22 mm. The average plant height on day 5 was 32 mm. The average plant height on day 3 was 27 mm. The average plant height on day 2 was 26 mm. The average plant height on day 4 was 30 mm.
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Data Tables
• What is DATA?– Data is the information that collected
during an experiment– It is generally the measurements of your
dependent variable
• Why do we use data tables?– Data tables help scientists organize data
so that it is easy to find the information that they need.
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What kind of data is this?
• Determine what kind of data the following tables represent.
• Organize the data tables on the next slide into 2 categories: quantitative data and qualitative qualitative
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Quantitative or Qualitative?
Table 1
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Quantitative or Qualitative?
Table 2
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Quantitative or Qualitative?
Table 3
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Quantitative or Qualitative?
Table 4
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Quantitative or Qualitative?
Table 5
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Quantitative or Qualitative?
Table 6
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Warm Up
Which figure to the right represents the data in the clearest manner? Explain.
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Graphing
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Purpose of a graph
• Show data in a clear picture so that the trends are clear.
• Scientist use graphs to analyze data.
• Key words – TREND:– POSITIVE CORRELATION:– NEGATIVE CORRELATION:
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Examples of Graphs
• What trends do you see in this graph?
• Is there a positive or negative correlation?
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Examples of Graphs
• What trends do you see in this graph?
• Is there a positive or negative correlation?
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Examples of Graphs
• What trends do you see in this graph?
• Is there a positive or negative correlation?
• What happens in the “A” section of the graph?
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Examples of Graphs
• What trends do you see in this graph?
• Is there a positive or negative correlation?
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Examples of Graphs
• What trends do you see in this graph?
• Is there a positive or negative correlation?
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Which graph is the best depiction of the data? Why?
Sitting Walking Running
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Which graph is the best depiction of the data? Why?
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Line graph
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Bar vs. Line Graph
• Can this data be shown as a line graph?
• If yes, what would need to change about the graph?
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ScaleYear: 2000 Year: 2011
In which year did Mabel and Albert have greater changes in their heart (pulse) rate? How do you know?
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Scale
• In what year was the pH of the lake the most basic?
5.0
4.0
9.0
2.0
1.0
6.0
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Labeling Axis
• What are the appropriate labels for the axis?
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Labeling Axis
• What are the appropriate labels for the axis?
Time (years)
pH
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• Is anything missing from this graph? If so, what?
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5 Key parts to a GREAT graph!
• Title
• Labeled Axes
• Units
• Scale
• Key
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How to make a simple graphSteps for ALL graphs:
•Draw the axes (X and Y)•X: independent variable•Y: dependent variable
•Determine variables and label the axis
Steps for BAR graphs:•Number the y-axis with the right scale•Label the x-axis with categories•Make bars that represent the data and color them
Steps for LINE graphs:•Number the y-axis with the correct scale•Number the x-axis with the correct scale•Plot the points according to the data•Connect the points with a line
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Can you explain the trends shown by these graphs?
We clearly still have more to learn but now you know that basics!
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