For teachers, it's not just what you say, it's how you say it

“I’ve known teachers who have been yellers and teachers who have been very, very soft-spoken,” said David Kretschmer, an education professor at California State University, Northridge. “Just as with the tone we use with anybody we’re conversing with – or the tone we use with a pet – it can have a powerful impact.”

https://edsource.org/2017/for-teachers-its-not-just-what-you-say-its-how-you-say-it/574363

EdSource