iRubric: Use Power of 10 to Estimate Quantities rubric

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Use Power of 10 to Estimate Quantities Expressing Numbers in Scientific Notation 8.EE.A.3. Use numbers expressed in the form of a single digit times an integer power of 10 to estimate very large or very small quantities, and to express how many times as much one is than the other. For example,estimate the population of the United States as 3??108 and the population of the world as 7??109, and determine that the world population is more than 20 times larger. Rubric Code: V243B46 By flobe32 Ready to use Public Rubric Subject: Math Type: Assessment Grade Levels: 6-8

Use Power of 10 to Estimate Quantities
	Highly Proficient 3 pts	Proficient 5 pts	Partially Proficient 7 pts	Minimally Proficient 9 pts
Estimating very large or very small	Highly Proficient The student uses their understanding of estimation to compare and contrast very large or very small numbers with a clear explanation to determine how many times larger or smaller one number is to another with no errors.	Proficient The student uses their understanding of estimation to compare and contrast very large or very small numbers with a clear explanation to determine how many times larger or smaller one number is to another with minor errors.	Partially Proficient The student uses their understanding of estimation to compare and contrast very large or very small numbers with unclear explanation to determine how many times larger or smaller one number is to another with errors that communicate misconceptions.	Minimally Proficient The student uses their limited understanding of estimation to compare and contrast very large or very small numbers with minimal explanation to determine how many times larger or smaller one number is to another with errors that communicate misconceptions. Answers are incorrect.