iRubric: Presidents' residuals rubric

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Presidents' residuals Draw a scattered plot of the "age at Inauguration" vs. "Age at Death". Find the equation of the line of best fit for the scattered plot and then graph the residuals. Rubric Code: CC28CB By wbdurham Draft Public Rubric Subject: Math Type: Project Grade Levels: 9-12

Residual Graph example
	Poor 1 pts	Fair 2 pts	Good 3 pts
Labels	Poor No Labels on either axis.	Fair Label on either one but not both axis.	Good A label on both the "x" and "y" axis.
Scatter Plot	Poor No scatter plot observed.	Fair A skewed scattered plot caused by dissimilar calibrations on the "x" and "y" axis.	Good A complete scatter plot with similar calibrations on the "x" and "y" axis.
Linear equation	Poor No linear equation observed.	Fair A linear equation observed with either or both the slope and y-intercept incorrect.	Good A correct linear equation observed.
Table	Poor Very little if any of the table of residuals observed.	Fair An incomplete data table or a complete data table with a large number of errors in the calculations.	Good A complete residual table with few if any errors.
Residual graph	Poor An incomplete residual graph observed.	Fair Your complete residual graph has an obvious pattern indicating mistakes in your calculations and/or knowledge of how to make a residual graph.	Good Your residual graph looks like a scattered plot with equal positive and negative magnitudes.