During school class room,our teachers used to say "Dont make noise" when we used to shout.
Is "Dont make noise" a proper phrase or is it incorrect?
Also, what is the more common phrase that can be used in this scenario.
Hello, (I am not a teacher),
Your sentence is better like that: "Don't (do not) make noise". You can say: 'Stay quiet' or 'Silence, please'.
Hope it helps you.
See you later.