Book of Facts

The Book of Facts is a series of 4 teacher resource books that provide instruction lessons for addition, subtraction, multiplication and division number-fact strategies. Each book focuses on one operation in depth. This teacher resource is used in conjunction with The Box of Facts that provide ready-made visual models to reinforce students strategy practice.

Each lesson introduces, reinforces, practices, and extends student understanding of the basic addition, subtraction, multiplication, and division number-fact strategies. ORIGO has chosen strategies that meet three research-based criteria. Each strategy must be effective, efficient, and extendable.

Each book includes for each strategy:

  • Mathematical background
  • Prerequisite activities
  • Introduction, reinforcement, practice, and extension activities
  • Reproducible blackline masters
  • Definitions of terms
  • Assessment and recording options

Series titles

Related Products:

Box and Book of Facts Multiplication and Division Set

Box and Book of Facts Addition and Subtraction Set



Book of Facts

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The Book of Facts Subtraction Read more $29.95
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