R.C.
My heart goes out to your little girl for keeping strong. YES please schedule an appointment with her teacher asap. Am I missing something here? Why hasn't there been any intervetion on the schools part? Your children are the most important part of your life and there's nothing wrong in stepping in to find out what is going on. Your daughter is only 5 years old. Don't feel that you're being a helicopter parent or over protective -- she is still your little girl. If she is being bullied on the playground and you haven't heard concern or feedback from her school, then it's time to voice your concern to her teacher or school officials.