As your child grows and experiences negative things in their life, the way you react to these experiences models for your child how they should be act.  As they watch their mother and father respond to the negative occurrences that come about, they will evaluate how much or how little they should affect them.  Parents are their children's first and most important teachers.  

When children have been prepared for the unknown aspects of school that will occur, the fear and sense of uncertainty will be minimized and they can feel safer and more able to learn.  If they see the unknown as a opportunity to learn, that small change in perspective can make a huge difference.