Download 1.NBT Task 3f - K-2 Formative Instructional and Assessment Tasks

Formative Instructional and Assessment Tasks
NBT Task 3f
Domain
Cluster
Standard(s)
Materials
Task
Developing
Understanding
Number and Operations in Base Ten
Use place value understanding and properties of operations to add and subtract
1.NBT.4 Add within 100, including adding a two-digit number and a one-digit number, and
adding a two-digit number and a multiple of 10, using concrete models or drawings and
strategies based on place value, properties of operations, and/or the relationship between
addition and subtraction; relate the strategy to a written method and explain the reasoning
used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones;
and sometimes it is necessary to compose a ten.
SF, Cubes or counters, ten frames, pencil
Provide materials to the student. Read the directions to the student: Solve each problem.
Show your thinking with pictures, numbers, or words.
1. 31 + 7 = ☐
2. ☐ = 55 + 7
3. ☐= 32 + 50
4. 74 + 9 = ☐
5. 63 + 30 = ☐
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Complete
Understanding
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2.
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5.
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7.
8.
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Continuum of Understanding
Solves one or more items incorrectly.
Solves the items correctly, but relies on counting all or
counting on.
Solves the items correctly, but does not show strategies
with pictures, numbers, or words.
Clearly explains the correct answer for each item,
showing use of strategies other than counting on or
counting by ones.
Strategy(ies) Used:
 Counting All
 Counting On
 Makes Tens
 10 more than/less than
 Basic Facts
 Creates easier or
known sums
 Doubles
 Doubles +/- 1, 2
 Other:
Standards for Mathematical Practice
Makes sense and perseveres in solving problems.
Reasons abstractly and quantitatively.
Constructs viable arguments and critiques the reasoning of others.
Models with mathematics.
Uses appropriate tools strategically.
Attends to precision.
Looks for and makes use of structure.
Looks for and expresses regularity in repeated reasoning.
NC DEPARTMENT OF PUBLIC INSTRUCTION
FIRST GRADE