Imagine you and your friends want to take turns playing a game. Round-robin is like that game, but for more people.
In round-robin, everyone takes turns doing something, but it goes in a circle so no one gets left out. Let's say you have 4 friends and you all want to take turns playing a game. With round-robin, you would start with friend 1 and they would play their turn. Then, it would be friend 2's turn, then friend 3, then friend 4. Finally, it's back to you and then the cycle starts over again with friend 1.
This method can be used for lots of things, like scheduling events or organizing meetings. It makes sure that everyone has a chance to participate and no one is left out. It's fair and everyone gets a turn!