CCSS Mathematics Assessment Task
Arrays
Grade Level: 2
Mathematics Domain and Cluster:
Domain: Operations and Algebraic Thinking
Cluster: Work within groups of objects to gain foundation for multiplication
Common Core standard(s) being assessed (if the task is intended to assess only one part of the
standard, underline that part of the standard):
2.OA.4 Use addition to find the total number of objects arranged in rectangular arrays with up to 5
rows and up to 5 columns; write an equation to express the total as a sum of equal addends
Student Materials:
 Pencil
Teacher Materials:
 Array assessment sheets
Directions (for teacher to administer assessment task):
Teacher may choose whether to assess students in small groups or as a whole class.
 Hand out Array assessment sheet (one per student)
 Tell students, “For each array, you will need to write a matching equation and show how you
added to find the total.”
 Have students work independently on task.
Prompt:
See attachment.
Correct or Model Answer:
Answer may look similar to this.
5
10
15
20
25
5 + 5 + 5 + 5 + 5 = 25
5,
10, 15, 20, 25
or
5+5+5+5+5=
10
10
20
+ 5 = 25
CCSS Mathematics Assessment Task
Scoring Guide/Rubric (a score should be awarded for each criterion below)
Criteria (CCSS code)
0 points
1 Point
Use addition to find the The student does not
The student draws an
total number of object
draw an array.
array that matches the
arranged in rectangular OR
problem with minor
arrays with up to 5
The student draws an
errors.
rows and up to 5
array that is
columns. (2.OA.4)
significantly different
from the problem.
Write an equation to
The student does not
The student writes an
express the total as a
write an array.
equation that matches
sum of equal addends.
OR
the array with minor
(2.OA.4)
The student writes an
errors.
equation that does not
match the array.
2 Point
The student draws an
accurate array to
match the problem.
The student writes a
correct equation that
matches the array.
CCSS Mathematics Assessment Task
Arrays
Directions: Write an equation to match the array.
1.
2.
Equation:
______________________________________
Equation:
______________________________________
3.
4.
Equation:
______________________________________
Equation:
______________________________________
Scoring Guide/Rubric (a score should be awarded for each criterion below)
Criteria (CCSS code)
0 points
1 Point
Use addition to find the The student does not
The student draws an
total number of object
draw an array.
array that matches the
arranged in rectangular OR
problem with minor
arrays with up to 5
The student draws an
errors.
rows and up to 5
array that is
columns. (2.OA.4)
significantly different
from the problem.
Write an equation to
The student does not
The student writes an
express the total as a
write an array.
equation that matches
sum of equal addends.
OR
the array with minor
(2.OA.4)
The student writes an
errors.
equation that does not
match the array.
2 Point
The student draws an
accurate array to
match the problem.
The student writes a
correct equation that
matches the array.