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iRubric: Unit Rate Product Comparison rubric

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Unit Rate Product Comparison Unit Rate Product Comparison Rubric Code: G2455W5 By Devante15 Ready to use Public Rubric Subject: Math Type: Assignment Grade Levels: 6-8

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	Below Target 1 pts	Minimum Target 2 pts	On Target 3 pts	Outstanding 4 pts
Comparison of the Items chosen. 4 pts List items and sizes here	Below Target Problem not finished or the proportions were not set up correctly to calculate the unit rate. The better buy is not stated. Many errors.	Minimum Target Comparisons are not completely clear and accurate. Some of the steps for comparing are left off. The better buy is not stated. Some errors.	On Target The paper indicates a comparison of two rates with decent accuracy. The better buy is stated. Minimal errors.	Outstanding Clearly chose two items of different sizes and accurately compared them by their unit rate. Paper clearly communicates the unit rate for both items. The better buy is stated. No errors.
Presentation 4 pts Solutions and Illustrations	Below Target Problem and solutions are randomly given with little or no detail on how solutions were attained.	Minimum Target Most of the required solution(s) are completed. Explanations using proportions are limited or missing to prove solutions.	On Target Complete problem is solved; Solution(s) are clearly noted on the poster/paper.	Outstanding Complete problem is illustrated, when applicable, and explained using math proportions and problem-solving. Solution(s) are clearly noted on the poster/paper.
Math Computation & Logic 4 pts Show all steps of your division to calculate the unit rate. Double check your answers with a calculator to make sure they are right.	Below Target Segments of problem solutions are incomplete or missing; 2 or more logic errors occur which invalidate solutions; steps are omitted.	Minimum Target Missing 1 segment of required solutions; Math computations are incomplete with errors; 1 error in logic occurs which invalidates a solution; some steps are omitted.	On Target Math computations are complete and mostly correct; errors occur in computation; logic is mathematically sound; most steps are included.	Outstanding Math computations are complete and correct; logic used is mathematically sound; all steps to the solution are included.