MAT-02.NBT.05

MAT-02 Targeted Standards
(NBT) Domain: Number and Operations in Base Ten
Cluster: Use place value understanding and properties of operations to add and subtract.

MAT-02.NBT.05 Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction

Student Learning Targets:

Knowledge Targets

Reasoning Targets

  • I can choose efficient strategies based on the numbers in a problem.

Skills (Performance) Targets

  • I can add and subtract numbers up to100 using efficient strategies.
  • I can add and subtract numbers using strategies such as breaking numbers into place value parts.
  • I can add and subtract numbers using strategies such as counting on by 10s and 100s and using landmark numbers.
  • I can use base ten drawings to show how numbers are composed and decomposed.

Product Targets

 

Rubric / Proficiency Scale

Score   Description Sample Activity
4.0

Student is able to accurately and fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

I can accurately add and subtract numbers within 1000 using efficient strategies.

I can choose efficient strategies based on the numbers in a problem.

 
  3.5 In addition to Score 3.0 performance, the student demonstrates in-depth inferences and applications regarding the more complex content with partial success.
3.0

Student is able to fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.  Student uses efficient strategies that lead to correct answers.

I can accurately add and subtract numbers up to 100 using efficient strategies.

I can choose efficient strategies based on the numbers in a problem.

Student completes four problems accurately and efficiently.
  2.5 No major errors or emissions regarding 2.0 content and partial knowledge of the 3.0 content.
2.0

Student is able to solve problems using strategies such a counting on, base ten drawings, landmark numbers, decomposing into place value parts, etc., but may have errors. 

I can add and subtract numbers using strategies such as breaking numbers into place value parts.

I can add and subtract numbers using strategies such as counting on by 10s and 100s and using landmark numbers.

I can use base ten drawings to show how numbers are composed and decomposed.

Student completes four problems with no more than 2 errors.
  1.5 In addition to 1.0 content, student has partial knowledge of the 2.0 and/or 3.0 content.
1.0

Student solves problems by "counting all" by ones using concrete models/counters, tallies, pictures, etc. to add within 100 and subtract multiples of 10 from numbers 10-90.  Student attempts may or may not result in correct answers.

I can solve problems using counting tools.

 
  0.5 Limited or no understanding of the skill is demonstrated.

Resources

Websites

Vocabulary

  • fluent
  • compose
  • decompose
  • place value
  • digit
  • add
  • subtract
  • sum
  • equal
  • difference
  • landmark numbers
  • place value parts
  • addition
  • subtraction
  • base ten
  • ten more/less
  • 100 more/less
  • number line
  • base ten blocks
  • 100 chart

 

» Second Grade Math