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iRubric: Math Number Families rubric

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Math Number Families Using to demonstrate understanding of addition/subtraction and number families Rubric Code: S7CWW2 By ljpfirst Ready to use Public Rubric Subject: Math Type: Assessment Grade Levels: K-5

Number Families to determine understanding of number families
	Poor No or very little understanding 1 pts	Fair Seems to understand, but has trouble independently 2 pts	Good Understands the concept and can perform tasks independently. 3 pts
Part + Part = Whole Stud is given 2 numbers to add together for the sum	Poor Does not consistently use addition within 20 to solve word problems involving situations of adding to, putting together, and comparing, with unknowns.	Fair 3 of 5 times uses addition within 20 to solve word problems involving situations of adding to, putting together, and comparing, with unknowns.	Good Consistently uses addition within 20 to solve word problems involving situations of adding to, putting together, and comparing, with unknowns.
Whole - Part = Part Stud is given 2 numbers to subtract to find the difference.	Poor Does not consistently use subtraction within 20 to solve word problems involving situations of taking from, taking apart, and comparing, with unknowns.	Fair 3 of 5 times uses subtraction within 20 to solve word problems involving situations of taking from, taking apart, and comparing, with unknowns.	Good Consistently uses subtraction within 20 to solve word problems involving situations of taking from, taking apart, and comparing, with unknowns.
+ / - Relationship Stud will determine relationship of 3 numbers used in adding and subtracting.	Poor Does not consistently solve word problems that call for using three whole numbers whose sum is less than or equal to 20	Fair 3 of 5 times solves word problems that call for the use of three whole numbers whose sum is less than or equal to 20	Good Consistently solves word problems that call for the use of three whole numbers whose sum is less than or equal to 20