iRubric: Factor Tree rubric

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Factor Tree

Students will create a factor tree using leaves, branches, and exponents.

Rubric Code: G24BC6A

By Tanyoid

Ready to use

Public Rubric

Subject: Math

Type: Project

Grade Levels: K-5

Factor Tree
	Excellent 4 pts	Good 3 pts	Fair 2 pts	Poor 1 pts
Factor Tree	Excellent Factor tree is complete and correct; no mistakes.	Good Factor tree is complete with one mistake.	Fair Factor tree contains two mistakes.	Poor Factor tree is incomplete or contains more than two mistakes.
Prime Factorization	Excellent Includes all required elements; factors are all primes	Good Includes all required elements; factors are all primes	Fair Missing one or two required elements. some of the numbers are composite	Poor Missing many elements or not completed. Numbers are not primes
Exponets	Excellent All exponents are correctly displayed on bottom of tree	Good Some exponets are correctly displayed on bottom of tree	Fair Exponents are listed with a few minor errors	Poor No exponents are listed
Overall Appearance	Excellent Every component is done completely and neatly. Very well done.	Good Every component is completed; somewhat neat. Well done.	Fair Most components are completed; missing some leaves/branches Needs improvement.	Poor Missing many components or not done. Unsatisfactory.