We've talked about how to initially approach a problem by understanding what it's asking and exploring concrete examples. We've also discussed developing a plan to solve the problem, by breaking it down into smaller and more manageable pieces.
But planning is sometimes easier said than done. After you've broken a problem down, you may find that one of the components is quite difficult. For particularly challenging problems, you may not even know how to break down the problem at all. In these situations, it may help to turn to our next problem solving strategy: solve a simpler problem.