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iRubric: Dentists for the Future Line of Best Fit rubric

iRubric: Dentists for the Future Line of Best Fit rubric

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Dentists for the Future Line of Best Fit 
Using Scatter Plots to Make Predictions
Dentists for the Future is a real world application of Line of Best Fit. Students must use the data given to create a scatter plot, draw find a line of best fit and interpret data.
Rubric Code: EA69C6
By kevjohns
Ready to use
Public Rubric
Subject: Math  
Type: Assessment  
Grade Levels: 6-8

Powered by iRubric Scatter Plots
  Poor

2 pts

Fair

3 pts

Good

4 pts

Style

5 pts

Neatness of Graph
5 pts

This includes: Title on Graph, Labels, and Appropriate Units Used on Graph.
Poor

Most ordered pairs are plotted on the Graph, but the graph appears messy and thrown together in a hurry. Nothing on graph is labeled.
Fair

All ordered pairs are on the graph. Lines are neatly drawn but the graph appears quite plane. Labels are used to explain axes.
Good

All ordered pairs are on the graph.Graph is neat and relatively attractive. Labels are used and its easy to understand data.
Style

All ordered pairs are on the graph.Exceptionally well designed, neat, and attractive. Title is used.
Line of Best Fit
5 pts

Draw Line.
Poor

Line is just drawn free handed and correlation is not evident.
Fair

Line is drawn neatly through points, but does not match equation of line from calculator.
Good

Line matches equation of line given from calculator. The slope is correct, but the y-intercept is incorrect.
Style

Line matches equation of line given from calculator. Line is best-fitting and models correlation well.
Description of Correlation
5 pts

Poor

No description is given.
Fair

Very basic description is given with little thought put into it.
Good

Description makes sense and fits data appropriately.
Style

Much thought was put into prediction and description is very closely correlated to the data.
Equation of Line
5 pts

Poor

Equation of line is incorrect.
Fair

Equation of line has either the slope or y-intercept correct, but not both.
Good

Equation of line has both the slope and y-intercept correct.
Style

Equation of line has both the slope an y-intercept written correctly and is written in slope intercept form.
Slope
5 pts

Poor

The slope is written and correct.
Fair

The slope is written and correct, however the description of the slope in the context of the problem is attempted but wrong.
Good

The slope is written and correct. The description of the slope in the context of the problem is partially correct.
Style

The slope is written and correct. The description of the slope in the context of the problem is correct.
Prediction
5 pts

Poor

The prediction is attempted but incorrect.
Fair

The prediction is attempted and correct, but no justification is shown.
Good

The prediction is attempted and incorrect, but justification is shown.
Style

The prediction is attempted and correct, and justification is shown.
Evaluation of Model
5 pts

Poor

Attempt to predict based on model is made with no justification.
Fair

Attempt to predict based on model is made with minimal justification.
Good

Attempt to predict based on model is made with justification, but prediction is incorrect.
Style

Attempt to predict based on model is made with justification, and prediction is correct.




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