Teaching Models

Subtraction Facts Through 12

Subtraction facts are taught by associating each with the related addition fact. Children are also encouraged to use manipulatives, pictures, or counting back to solve subtraction problems. The use of fact families and related facts, first written vertically and then written horizontally, provides practice as well as introduces the algebraic concept of equations.


Teaching Model 16.4: Relate Addition and Subtraction


Houghton Mifflin Math Grade 1