What are semaphore signals?

Semaphore signals are tools that help people know when it’s their turn to do something, like a game of tag or sharing toys.

Imagine you and your friend are playing with a ball in the playground, but there's only one swing. You both want to use it at the same time! That would be messy. So, you decide to use semaphore signals, like little flags, to tell each other when it’s their turn to swing.

Think of semaphore signals like a "go" or "wait" sign that you can hold up with your hand or a flag.

• If you see the signal saying “Wait”, you know someone is using the swing and you should wait.
• If you see the signal saying “Go”, it means the other person is done, and now it's your turn!

It’s like taking turns in a game, but instead of just saying “Your turn!” out loud, you use signals to show what’s happening. This helps everyone know when to go or wait without getting confused.

Semaphore signals are used not just at the playground, they help people all over the world take turns in big systems too!