Let’s get started.

[Silverobama]

I was hosting an English club for children.

I asked them (two teams) to write a conversation then role-play the conversation. 15 minutes later, I said to them when they were still making noise…

Kids! Time’s up, let’s get started.

Is the italic sentence natural?

 

[emsr2d2]

When I was hosting an English club day/evening for children, I put them into two teams and I asked them (two teams) to write a conversation then role-play the conversation perform it. 15 minutes later, I said to them when they were still making [a/a lot of] noise, I said:

Kids! Time’s up; let’s get started.

Is the italic sentence natural?

It's OK. I might say "Time's up, kids!" first but I can see how shouting "Kids!" first would get their attention.

 

[Rabbi Hasan]

I was hosting an English club for children.

I asked them (two teams) to write a conversation then role-play the conversation. 15 minutes later, I said to them when they were still making noise…

Kids! Time’s up, let’s get started.

Is the italic sentence natural?

Sure thing. Your sentence is almost natural. Here's a slightly polished version:

"Kids! Time's up; let's get started."
This keeps it clear and concise.

 

[emsr2d2]

Sure thing. Your sentence is almost natural. Here's a slightly polished version:

"Kids! Time's up; let's get started."
This keeps it clear and concise.

@Rabbi Hasan With the exception of the fact that you've changed the comma to a semi-colon (a change I'd already made), your version is identical to the OPs.
Please explain in full how yours makes it "clear and concise".

 

[teechar]

Also, you haven't answered my question in post #3 of the following thread:

Hook told me if I wanted to...,

Context: Hook is a friend of mine and he has been using a dating app for many years - to find a girlfriend. He has found more than ten but each time his ex-girlfriends asked him to marry them, he turned them down by saying "I don't have a job" so I don't want to start a family. But before they...

www.usingenglish.com

 

[Rabbi Hasan]

@Rabbi Hasan With the exception of the fact that you've changed the comma to a semi-colon (a change I'd already made), your version is identical to the OPs.
Please explain in full how yours makes it "clear and concise".

You're right, the semi-colon does make a difference, but the original sentence with the comma isn't wrong either. Both are clear and effective. The slight tweak just adds a bit of formality, but it doesn't drastically change the meaning or clarity.

 

[tedmc]

You're right, the semi-colon does make a difference, but the original sentence with the comma isn't wrong either. Both are clear and effective. The slight tweak just adds a bit of formality, but it doesn't drastically change the meaning or clarity.

The original with the comma splice is wrong.