Elinor Ostrom was a very important person who helped to solve a big problem. She won a Nobel Prize for her work. The problem was about how to share resources fairly. Resources are things like water, land, forests, and things like that which people need to survive.
Elinor Ostrom figured out that it was best for people to work together to manage the resources - almost like a team. She showed that it was better than just one group or person taking all of the resources. This is called "the commons" and it means that everyone can have a voice in how to use the resources.
Elinor Ostrom's ideas have been very important in helping people think about how to share resources in a fair way. Her work has made it easier for people to share land, water, forests, and other resources so that everyone can have enough and no one will be left out.