Yasmin and Zach have some bears to share. Which numbers of bears can they share equally so that there are none left over?
Can they share one bear equally? Can they share two bears equally? Three bears? Four bears...?
What do you notice about the numbers they can share fairly? It might help to look at a number line and mark the numbers that do share fairly onto it. Do you notice a pattern?
How about using a 100 square?