~ we know and use multiple strategies to solve a particular problem

In contrast to the classical view that experts and novices use a particular method, developmental psychologist Robert Siegler finds that people use multiple methods to come up with answers . In his study of how addition strategies children use evolve, he discovered that most children used at least three techniques. Even college students will use multiple methods for single-digit arithmetic.

❐ Variability, Not Repetition, is the Key to Mastery - Scott H Young