MAT02 Targeted Standards (OA) Domain: Operations and Algebraic Thinking Cluster: Add and subtract within 20.
MAT02.OA.02.b Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two onedigit numbers.Know from memory: The ability to compute math facts with automaticity (35 seconds) and confidence (ND).
Student Learning Targets:
Knowledge Targets
I can answer subtraction facts to 20 quickly (35 seconds).
Reasoning Targets
Skills (Performance) Targets
Product Targets
Rubric / Proficiency Scale
Score
Description
Sample Activity
4.0
There are no advanced criteria for this task as recall of basic facts is foundational. Application of this skill will occur within tasks requiring subtraction within 100 and word problems

3.5
In addition to Score 3.0 performance, the student demonstrates indepth inferences and applications regarding the more complex content with partial success.
3.0
Student is able to answer subtraction facts to 20 with at least 90% accuracy given 5 seconds per fact.
I can answer almost all subtraction facts to 20 quickly.

2.5
No major errors or emissions regarding 2.0 content and partial knowledge of the 3.0 content.
Student is able to answer subtraction facts to 20 with 80% accuracy given 5 seconds per fact.
2.0
Student is able to answer subtraction facts to 20 with at least 75% accuracy given 5 seconds per fact.
I can answer many subtraction facts to 20 quickly.

1.5
In addition to 1.0 content, student has partial knowledge of the 2.0 and/or 3.0 content.
Student is able to answer subtraction facts to 20 with 50% accuracy given 5 seconds per fact.
1.0
Student is able to answer subtraction facts to 20 with less than 50% accuracy given 5 seconds per fact.
and
Student is able to answer subtraction facts to 10 with at least 90% accuracy given 5 seconds per fact
I can answer almost all subtraction facts to 10 quickly.
I can answer some subtraction facts to 20 quickly.

0.5
Limited or no understanding of the skill is demonstrated.
Student is able to answer subtraction facts to 10 with at least 90% accuracy given 5 seconds per fact (1st grade target)