How do central banks use interest rates to control inflation?

Central banks use interest rates to control inflation, which is when things get more expensive over time.

Imagine you're saving up for a toy that costs $10. If your parents give you money every week, and you put it in a piggy bank, the amount of money you save depends on how much they give you each time. Now imagine if your parents said, "We'll only give you $1 this week," or maybe even more, like "$5!" That changes how quickly your toy savings grow.

Interest rates are kind of like the amount of money your parents decide to give you each week. If a central bank wants to stop prices from rising too fast (which is inflation), it might lower interest rates, like giving you more money every week, that makes borrowing easier and spending more fun, but it can also make things cost more.

On the other hand, if inflation is getting out of control, the central bank might raise interest rates, like telling your parents to give you less money each week. This means people borrow less and save more, which helps slow down rising prices.

So, interest rates are a tool that central banks use to keep things from getting too expensive or too cheap, just like how your toy savings depend on what your parents decide to give you!