Children are not supposed to call their parents by their first name because it implies a casual rather than respectful relationship.
My daughter attends the school where my wife is a teacher. The teachers each have their preference for how students should address them, and my wife is Morah Kareen (her first name).
When a child is in her mother's class, is it appropriate for her to refer to her mother as "Morah ____," like the other children, or must she avoid saying her mother's name altogether, even with a title?