Access Point #: MAFS.2.OA.1.AP.aaArchived Access Point

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Find the unknown number in an equation (+, - ).
Clarifications:

Essential Understandings

Concrete:

  • Make a set with objects from a given addition or subtraction equation.
  • Join or separate objects and count to determine how many were ‘added to’ the set (Ex: 8 + ? = 10) ‘taken from’ the set (Ex: 3 - ? = 1), or the sum or difference (Ex: 6 + 6 = ?).
Representation:
  • Make a set with visuals from a given addition or subtraction equation.
  • Join or separate visuals and count to determine how many were ‘added to’ the set, ‘taken from’ the set.
  • Understand the concepts, symbols, and vocabulary of +, - and =.
General Information
Number: MAFS.2.OA.1.AP.aa
Category: Access Points
Date Adopted or Revised: 06/14
Cluster: Represent and solve problems involving addition and subtraction. (Major Cluster) : 

Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

Related Standards

This access point is an alternate version of the following benchmark(s).

Related Courses

This access point is part of these courses.
5012040: Mathematics - Grade Two
7712030: Access Mathematics Grade 2
5012005: Foundational Skills in Mathematics K-2

Related Resources

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