What is sets?

A set is just a group of things that belong together, like toys in a toy box.

Imagine you have a bag of marbles. Each marble is different, some are red, some are blue, and some are green. A set is like that bag: it holds all the marbles (or any other items) that we decide to put together.

A set doesn’t care about order or how many things are in it, just that they’re part of the same group. So if you have red, blue, and green marbles in your bag, your set is all those marbles, no matter which one you pick first.

Think of a set like a lunch box: it holds your sandwich, apple, and juice, even though they're different things, they’re all part of the same group. Or like your backpack: it has your books, pencil case, and water bottle, all in one place, making it easier to carry everything you need.

So next time you see a bag of marbles or open your lunch box, remember, you're looking at a set!