I have my opinion about the following point.
A few times, very few times, it may be educative to shout at a student or at some students.
Usually the solution of problems can be explained to the students by talking, but it might be educative – as I said – to shout a correction or a reprimand at your students, few times, not as a habit or costume. This should be the aim. / Photo from: Study Bench www pdx edu