how you deal with the numbers or structure to solve a problem
representation of a strategy, of relationships, some models can be tools
All strategies and models are of equal importance. We each have our favorites and each problem often calls for the use of different strategies, or even a combination of strategies. Flexibility and seeking to understand multiple approaches to a problem build our confidence as mathematicians. The following highlights the progression of models and strategies students will learn how to use to develop computational fluency with the four operations.
Read about this powerful strategy, Over and Adjust, as coined by Pam Harris, and see how it can be used for each of the four operations. This strategy can make the most complex computations friendlier and more efficient. The more you play around with this strategy, the deeper your number sense grows!