1st Grade Math



1st Grade Units (Based upon Oregon Common Core Standards for Mathematics):

Operations and Algebraic Thinking

  • Represent and solve problems involving addition and subtraction.
  • Understand and apply properties of operations and the relationship between addition and subtraction.
  • Add and subtract within 20.
  • Work within addition and subtraction equations.

Number and Operations in Base Ten

Measurement and Data

  • Measure lengths indirectly and by iterating length units.
  • Tell and write the time.
  • Represent and interpret data.


  • Reason with shapes and their attributes.