Task# Sidewalk Patterns

Illustrative MathematicsVaries

This purpose of this task is to help students articulate mathematical descriptions of number patterns. Though Cora and Cecilia's patterns are separate, we notice an interesting relationship emerge between corresponding terms in their patterns. For any given term, we will notice that Cecilia's number will always be three times Cora's number. Students may also notice that if we kept both patterns going indefinitely, Cecilia's numbers would always show up in Cora's path, though only some of Cora's numbers will show up in Cecilia's path.