Download K.OA Task 5f - K-2 Formative Instructional and Assessment Tasks

Formative Instructional and Assessment Tasks
OA Task 5f
Domain
Cluster
Standard(s)
Materials
Task
Developing
Understanding
Operations and Algebraic Thinking
Understand addition as putting together and adding to, and understand subtraction as taking
apart and taking from.
K.OA.3 Decompose numbers less than or equal to 10 into pairs in more than one way, e.g.,
by using objects or drawings, and record each decomposition by drawing or equation.
Manipulatives such as chips/cubes, pencil
Provide materials to the student. Read the problem to the student: There are 8 grapes in the
bowl. Some of the grapes are green and some of the grapes are purple. How many green
and purple grapes are in the bowl? Show as many ways as you can. Show your thinking
with objects, pictures or numbers. Prompt if needed: Can you show one more way?
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Complete
Understanding
1.
2.
3.
4.
5.
6.
7.
8.
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Continuum of Understanding
Provides only 1 possible pair, even with Strategies Used:
prompting.
 Trial-and-Error
Provides 1 or more possible pairs that
 Counting
are incorrect.
 Rearranging parts to create a new pair
A correct pair is provided, but the
(has 5 and 3 and moves one cube from the
strategy used is not provided, even with
5 over to make 4 and 4)
prompting.
 Known Facts
Correctly shows, states, or draws two or  Commutative Property
more combinations.
Pairs Identified:
 0 and 8
 5 and 3
 1 and 7
 6 and 2
 2 and 6
 7 and 1
 3 and 5
 8 and 0
 4 and 4
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
KINDERGARTEN