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iRubric: Picturing Proportions rubric

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Picturing Proportions Picturing Proportions Rubric for the GPS Task. Covers M6A2.c. Use proportions (a/b=c/d) to describe relationships and solve problems involving proportional relationships. Rubric Code: BX5298X By ewoods308 Ready to use Public Rubric Subject: Math Type: Quiz Grade Levels: 6-8

Solving Proportions
	Poor 2 pts	Fair 3 pts	Good 4 pts
Draw/Model Fractions	Poor Student is able to write the proportion into an equation format but has errors in the representation. No answer is given	Fair Student is able to write the proportion into an equation format but has only 1 error in the representation. student has answer the proportion accurately.	Good Student is able to write the proportion into an equation format and has no errors in the representation. student has answer the proportion accurately.
Explanation	Poor Student is able to minimally explain/convince another person that #3) 3/7=6/14, but does not use math terminology properly.	Fair Student is able to explain/convince another person that #3) 3/7=6/14 and uses minimal math terminology.	Good Student is able to explain/convince anther person that #3) 3/7=6/14 and uses the proper math terminology properly.
Shoe Proportional Representation	Poor Student is minimally able to show varying proportional representations. Calculations are not free of errors.	Fair Student is able to show a varying proportional representation accurately. Calculation contain on minor errors.	Good Student is able to give an accurate representation of varying proportion. Calculations contain no errors.
Explaination of understanding	Poor Student was not able to explain any understand of proportions. Little or no effort was made.	Fair Student was able to explain with some detail understanding of proportions some effort was made.	Good Student was able to explain with good detail understanding of proportions and good effort was made.