It is considered
lashon hora for children to speak negatively about their teachers. i.e. "My
teacher is so inconsiderate, she gives way too much homework. Doesn’t she
realize how much work we have in our other classes?" or "My rebbe embarrassed a
few boys in class today"
Lesson 2
Just as it is lashon hora for
kids to speak negatively about their teachers, the same applies to
imitating them or making facial expressions implying
negativity.
*(Lashon Hora = reporting something negative about
someone else that is TRUE)