We all had teachers who were rude or blunt and then there are teachers who are nice and polite. Teachers are allowed to be blunt or rude to some extent in certain situations in the USA. Is it the same in Russia? On the other hand, teachers are expected to be polite most of the time. Which of the following would be considered A) POLITE, B) RUDE, BUT ACCEPTABLE, and C) TOTALLY UNACCEPTABLE in a Russian elementary school situation (student ages seven to eleven)? Also if the constructs are inaccurate, please indicate a correctly equivalent construct. Thanks!
Заткнись - shut your mouth

закрой свой рот - shut your mouth

Закрой варежку! - Shut up!

Замолчи! - Shut up!

Довольно! - Enough!

Попридержи язык! - Hold your tongue!

Слушайте внимательно. - Listen carefully

Слушайте! - Listen!

Молчать! - Silence!

Молчи! - Be quiet!

Молчите! - Silence!