Teachers should be aware of current educational ideas, of advances in their own specialty, of the condition of their students, of problems that their students have, of the concerns of their students' parents, of the concerns of the school administration, of the way the wind is blowing, and of current events in general.
why should teachers challenge students
most parents/guardians/teachers are not aware of this, but the average girl begins dating at 12 or 13 and loses their virginity at 15, 16, or 17.
Most teachers are aware that you have other classes, so most schools give out appropriate amounts of work. You should have just enough work to challenge you, but not so much that there's literally not enough time to finish it.
no
Consciously or not all do. But only some are aware that they do, others do so without explicit knowing that they do.
Definatly each of the teachers take attendance.
Principals should not listen to teachers' conversations without the teachers' knowledge. Likewise, teachers should not have conversations in school that they would not want other school employees, including the principal, to hear.
'they should have been more aware of theirsurroundings'
no
Absolutely not.
No. However, it would be helpful if more teachers were aware of the signs of depression, as this is a highly prevalent condition (with potentially lethal consequences in its severe form, if left untreated).
Your joke regarding pigs and bad teachers should end with suspense.