Download a2OA1-2NBT5-2MD6-Students

CCSS Mathematics Assessment Task
Students
Grade Level: 2
Mathematics Domain and Cluster:
Domain: Operations and Algebraic Thinking
Cluster: Represent and solve problems involving addition and subtraction.
Domain: Number and Operations in Base Ten
Cluster: Use place value understanding and properties of operations to add and subtract.
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.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving
situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in
all positions, e.g., by using drawings and equations with a symbol for the unknown number to
represent the problem.
2.NBT.5 Fluently add and subtract within 100 using strategies based on place value, properties of
operations, and/or the relationship between addition and subtraction.
2.NBT.6 Add up to four two-digit numbers using strategies based on place value and properties of
operations.
Student Materials:
 Students assessment sheet
 Pencil
Teacher Materials:
 None
Directions (for teacher to administer assessment task):
 Pass out Students assessment sheet
 Tell students, “You will need to read the problem and write an equation to match the problem.
Then, solve the problem using numbers and show your strategy on the number line.”
 Read prompt aloud to students.
 Remind students, “ Do not forget to write an equation to match the problem, solve the problem
using numbers and show your strategy on the number line.”
 Have students work independently on the task.
Prompt:
See attachment
Correct or Model Answer:
Part 1:
29 + ___________ = 53
Part 2:
Place Value
29 + ___________ = 53
29 + 20 = 49
49 + 4 = 53
20 + 4 = 24 students
Relationship Between Addition and Subtraction
53 – 29 = ___________
53 – 20 = 33
33 – 9 = 24 students
CCSS Mathematics Assessment Task
Part 3:
Scoring Guide/Rubric (a score should be awarded for each criterion below)
Criteria (CCSS code)
0 points
1 Point
2 Point
Use addition and
subtraction within 100 to
solve one- and two-step
word problems involving
situations of adding to,
taking from, putting
together, taking apart,
and comparing, with
unknowns in all positions,
e.g., by using drawings
and equations with a
symbol for the unknown
number to represent the
problem. (2.OA.1)
Fluently add and subtract
within 100 using
strategies based on place
value, properties of
operations, and/or the
relationship between
addition and subtraction
(2.NBT.5)
Writes an equation with a
symbol for the unknown
however it is not related
to the story.
Writes an equation with a
symbol for the unknown
that matches the story
with minor numerical
errors.
Writes an equation with
a symbol for the
unknown that matches
the story accurately.
Uses a strategy to solve
the problem with major
misconceptions OR
unable to use a strategy
to solve the problem.
Uses a strategy to solve
the problem accurately.
Student uses place
value, properties of
operations and/or
relationships between
addition and subtraction
to solve the problem.
Represent whole
numbers as lengths from
0 on a number line
diagram with equally
spaced points
corresponding to the
numbers 0, 1, 2, …, and
represent whole-number
sums and differences
within 100 on a number
line diagram. (2.MD.6)

Uses a strategy to solve
the problem with minor
errors in computation.
Student uses place value,
properties of operations
and/or relationships
between addition and
subtraction to solve the
problem.

Represents the
problem on the
number line with
minor errors

Movement on the
number line matches
the problem but not
strategy used to solve
the problem OR
movement has minor
errors in computation

Represents the
problem on the
number line with
misconceptions OR is
unable to show the
problem using a
number line
Movement on the
number line does not
match the problem
OR movement has
errors in computation


Represents the
problem on the
number line
accurately
Movement on the
number line
matches the
problem and
strategy used to
solve the problem
CCSS Mathematics Assessment Task
Students
Second Grade Mathematics Assessment
Problem:
There are 53 students in third grade at Washington Elementary School. There are 29 students in Mrs. Lee’s
class and the rest of the students are in Mr. Smith’s class. How many students are in Mr. Smith’s class?
Write an equation that matches the story problem.
Solve the problem. Show your work below using numbers and equations.
[zzzzzzzzzz]
CCSS Mathematics Assessment Task