On of the things many teachers in Thailand who discipline children seem to forget is the good kids inthe class. These are the real losers!
If a teacher spends the first 10 minutes of every class disciplining the bad kids, or checking who has not done homework etc, that is 40 hours a year of learning lost to the good kids. Its about time teachers got their priorities right and considered the good kids.
If other kids mis-behave, just remove them from the class and get on with the job of educating those who actually WANT to learn. You are teachers, not pseudo parents or social workers……………so TEACH!