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8 th Grade Fremont Jr. High

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Scientific Method Review Problem Hypothesis Experiment/Test –IV –DV –Constants –Control Group –Experimental Group –Materials –Procedure Data Collection Data Analysis Conclusion

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First Identify the Independent Variable (IV) and the Dependent Variable (DV)

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NEXTNEXT Organize Data Using a Table Independent Variable goes here Dependent Variable goes here

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Then… Organize Data Using a Table

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Step 3 Choose the best graph to display the data. Lets review graphs next…

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Which Graph is Best for this Data?

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A Bar Graph is Used for Comparison

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Which Graph is Best for this Data? Franklin's Class Grades# of Students A9 B7 C2 D1 F6

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Which Graph is Best for this Data? Franklin's Class Grades# of Students A9 B7 C2 D1 F6

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A Pie Chart Shows Percent-Whole Relationships Franklin's Class Grad es # of Students A9 B7 C2 D1 F6

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Which Graph is Best for this Data? Suzy's Scores Date Test Scores (%) January 25, February 25, March 25, April 25, May 25,

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Which Graph is Best for this Data? Suzy's Scores Date Test Scores (%) January 25, February 25, March 25, April 25, May 25,

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Line Graphs Show Change over Time Suzy's Scores Date Test Scores (%) January 25, February 25, March 25, April 25, May 25,

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Create a Graph Title X axis label = IV Y Axis Label = DV Key Scale

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The Axis Labels Have 3 Parts The Scale The IV or DV Label The units of measurement

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Data Analysis Central Tendency Relationship between the IV and DV Slope of Line (Rate of Change) Highs & Lows Differences & Similarities Error Analysis

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Write the Data Analysis Science Test Class Period Average Score (%) Overall, the trend seems to be that scores increase as the day progresses. The highest average was 98%; the lowest 67%. The range is 31; the mean 81.6%; the median 85; there is no mode. This could be because students are more awake and alert later in the day. This data could be misinterpreted however. It could also be that more honor students are in 3rd and 5 th hours and this pulls up the average test scores. Further analysis should be done since some students were absent.

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Conclusion State whether the hypothesis was supported / was not supported. summarize the results of your data.

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Science Test Class Period Average Score (%) The Hypothesis was not supported by the data. Scores increased throughout the day with 5 th period scoring 31% higher than 1st period.

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