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iRubric: Unit Rate Product Comparison Project 7th grade Pre-AP rubric

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Unit Rate Product Comparison Project 7th grade Pre-AP 
Compare 4 items of different sizes of the same product such milk, can of beans, juice, lbs of meat, etc. by calculating the unit rate. Write an explanation about your comparison as Mr. Riley has explained. Neatly present a picture of your items, calculations of your unit rate and an explanation of which is the better buy on a standard 8 1/2 by 11 inch paper. Research items of different brands online from the following stores: HEB, Walmart, Krogers. Due: November 2

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  Outstanding

100 pts

On Target

90 pts

Minimum Target

85 pts

Below Target

75 pts

Comparison of the Items chosen.

Choose one item of two different sizes to compare.
Outstanding

Clearly chose two items of different sizes and accurately compared them by their unit rate. Poster clearly communicates the unit rate for both items.
On Target

Student chose two items but didn't choose an appropriate item to compare; however, the presentation indicates a comparison of two rates with decent accuracy.
Minimum Target

An item has been chosen to compare but the comparisons are not completely clear and accurate. Some of the steps for comparing are left off.
Below Target

The requirements of choosing two items to compare are done incorrectly. Presentation does not pertain clearly calculate the unit rates.
Presentation

Solution(s), Illustrations and Explanations
Outstanding

Complete problem is illustrated, when applicable, and well-explained using math terms and details of the problem-solving. Solution(s) are clearly noted on the poster/paper.
On Target

Complete problem is solved; Minimal explanation is given; however, the details of the math solution are evident. Solution(s) are clearly noted on the poster/paper.
Minimum Target

Most of the required solution(s) are completed; explanations are limited or missing; infrequent or no use of math terms to explain solutions.
Below Target

Problem and solutions are randomly given with little or no detail on how solutions were attained.
Clarity and Neatness

Please use ink when writing on a presentation poster.
Outstanding

WOW! Poster is well-organized, neatly presented in a colorful and engaging manner. Viewer can easily follow the flow of information presented.
On Target

Poster presents problem in a neat manner. All segments of the problem are visible, but lack organization for clarity.
Minimum Target

Poster requires viewer to study presentation to find all the pieces of the task. Writing may not be readily legible or organized.
Below Target

Problem segments arei haphazardly presented with no apparent organization; lacks necessary neatness needed to easily inform viewer.
Math Computation & Logic

Show all steps of your division to calculate the unit rate. Double check your answers with a calculator to make sure they are right. Label your answer as a rate.
Outstanding

Math computations are complete and correct; logic used is mathematically sound; all steps to the solution are included.
On Target

Math computations are complete and mostly correct; errors occur in computation; logic is mathematically sound; most steps are included.
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.
Below Target

Segments of problem solutions are incomplete or missing; 2 or more logic errors occur which invalidate solutions; steps are omitted.



Keywords:
  • ratio, rate, unit rate, input (x) , output (y),

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