a2NBT4-2NBT3-2NBT1-Comparison

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CCSS Mathematics Assessment Task
Comparison
Grade Level: 2
Mathematics Domain and Cluster:
Domain: Number and Operations in Base Ten
Cluster: Understand Place Value
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.NBT.1 Understand that the three digits of a three-digit number represent amounts of hundreds, tens,
and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:
a. 100 can be thought of as a bundle of ten tens — called a “hundred.”
b. The numbers 100, 200, 300, 400, 500, 600, 700, 800, 900 refer to one, two, three, four, five, six,
seven, eight or nine hundreds (and 0 tens and 0 ones).
2.NBT.3 Read and write numbers to 1000 using base-ten numerals, number names, and expanded
form.
2.NBT.4 Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits,
using >, =, < symbols to record the results of comparisons.
Student Materials:
 Comparison assessment sheet
 Pencil
Differentiation Operation:
 Base Ten Manipulatives (optional)
Teacher Materials:
 Base Ten Manipulatives (optional)
Directions (for teacher to administer assessment task):
 Pass out Comparison assessment sheet (one per student)
 Tell students, “ You will need to identify and write the numbers, write the correct symbol in the
blank and explain your second comparison using numbers or words.”
 Read prompt aloud to students
 Remind students, “Do not forget to write the correct numbers, write the correct symbol, and
explain your second comparison using numbers or words.”
 Have students work independently on the task.
Differentiation Option:
 Allow students to use base ten manipulatives.
Prompt:
See attachment
CCSS Mathematics Assessment Task
Correct or Model Answer:
I know that 324 is less than 326 because they both have three hundreds and two tens which are equal.
But, 324 has only four ones and 326 has six ones. Since 4 is less than 6, I know that 324 is less than
326.
300 + 20 + 4 = 324
300 + 20 + 6 = 326
Both numbers have three hundred and twenty. But 324 has only 4 ones and 326 has 6 ones. Since 4 is
less than 6, 324 is less than 326.
Scoring Guide/Rubric (a score should be awarded for each criterion below) – NOTE THAT THIS
PARTICULAR RUBRIC ASSESSES AT THE CLUSTER LEVEL.
Criteria (CCSS code)
0 points
1 Point
2 Point
Read and write numbers
to 1000 using base-ten
numerals, number names,
and expanded form.
(2.NBT.3)
Student is unable to
identify and write three
digit numbers.
Student is able to identify
and write three digit
numbers with a minor
error.
Student is accurately
able to identify and
write three digit
numbers.
Understand that the three
digits of a three-digit
number represent
amounts of hundreds,
tens and ones (2.NBT.1)
Student is unable to
correctly determine the
place value amounts
shown.
Student is able to correctly
determine the place value
amounts shown with a
minor error.
Student is able to
accurately determine
the place value amounts
shown.
Compare two three digit
numbers based on
meanings of hundreds,
tens and ones digits, using
>, =, and < symbols to
record the results of
comparisons. (2.NBT.4)
Student is unable to
compare the two
quantities orally or
symbolically. (Note: If the
Student is able to compare
the two quantities orally
but is unable to correctly
use the >, =, or < symbols.
Student is able to
accurately compare the
two quantities by
correctly using the >, =,
and < symbols.
Understand that the three
digits of a three-digit
number represent
amounts of hundreds,
tens and ones. (2.NBT.1)
Student is unable to use
pictures, equations, or
explanations to explain
the comparison. Their
reasoning has
misconceptions.
Student is able to use
pictures, equations or
words to explain their
reasoning but the
explanation does not have
references to place value
and/or comparisons.
Student is able to use
place value pictures,
expanded notation or
words with place value
and comparison
vocabulary to explain
their reasoning.
child shows that they are
unable to represent the
symbols correctly on paper,
ask the child orally to
compare the quantities.)
CCSS Mathematics Assessment Task
Comparison
Second Grade Mathematics Assessment
Part 1:
Write the value of the equation on the line below. Compare the answers using <, >, or =.
40 + 3 + 800 =
_________
500 + 90 + 2 =
_____
_________
Part 2:
Write the value of the pictures on the lines below. Compare the numbers using <, >, or =.
….
_________
_____
_____
Explain your comparison using numbers or words.
……
_________
CCSS Mathematics Assessment Task
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