iRubric: GCF and LCM rubric

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GCF and LCM GCF and LCM Students use different math strategies to find prime numbers and the GCF/LCM of two numbers. Rubric Code: Z2W6W63 By brownok Ready to use Public Rubric Subject: Math Type: Assessment Grade Levels: K-5

Primes
	Level 1 1 pts	Level 2 2 pts	Level 3 3 pts	Level 4 4 pts
Prime Factorization	Level 1 Missing many elements or not completed. numbers are not primes.	Level 2 Missing one or two required elements. some of the numbers are primes.	Level 3 Includes all required elements; factors are all primes.	Level 4 Includes all required elements; factors are all primes. Primes are written twice with the second set using exponents
Mathematical Thinking	Level 1 Two items (Factor tree, GCF, or LCM) are incorrect. Math work does not shows mathematical thinking	Level 2 One item (Factor tree, GCF, or LCM) is incorrect. Math work shows limited understanding.	Level 3 All items are accurate, explanations demonstrate clear Mathematical thinking.	Level 4 All items are accurate, explanations demonstrate a deeper understanding and mathematical thinking
Stratagies	Level 1 Use of a strategy is not evident or is used incorrectly	Level 2 Strategy used is appropriate but is incomplete	Level 3 Strategy used is appropriate and results in finding the GCF and the LCM	Level 4 More than one strategy was used to demonstrate a deeper understanding of how each strategy can result in finding the GCF and the LCM.