The teacher must not be out another story or insert it to make children understand the distractions and don't interrupt too much a matter of morality, will make the children bored.
Teachers must not diverge or other narrative inserts because it will make the children confused and do not understand depictions of morality, too, can make children sick.
The teacher must not go overboard or insert another story because it makes the child เข้าใจไขว้เขว and don't insert insert about morals too much will make children get bored