Imagine that you have a piggy bank, where you save your allowance money. In the province of Ontario, there are many people who also save money, but not in piggy banks - they save it in banks, just like you might when you're older.
Ontario has many things that it sells to other people or other places, just like when you might sell your old toys at a yard sale. Some of the things that Ontario sells are cars, aluminum, and electricity. When Ontario sells these things to other places, it gets money in return. This is called exporting.
Ontario also buys things from other places, just like when you might buy a toy at a store. Some of the things that Ontario buys are oil, gas, and natural resources. When Ontario buys things, it gives some of its money to the people or places that sold the items. This is called importing.
Ontario's economy is a big circle that keeps going around and around. When Ontario sells things, it gets money, and when it buys things, it gives away some of that money. All of the people who are saving money, and all of the businesses that are selling and buying things, are part of Ontario's economy.
Sometimes, things happen that can make the economy go better or worse. For example, if there is more demand for Ontario's products, then more people will buy them and Ontario will make more money. But if something happens that makes it harder for Ontario to sell its products, then it might make less money.
Overall, the economy of Ontario is like a big puzzle with lots of pieces that all fit together. It depends on many things, like what's happening in other parts of the world and what resources Ontario has. But no matter what happens, the people of Ontario keep working hard and trying to make things better.