Who is Bridget from Maria Montessori: Her Life and Work and what is their importance?

Bridget is a young girl. She comes up during the same scenes of Montessori School activity as Johnny. The concern is the manner in which she is using a numbers frame. The system includes that no child has permission to use a device until after he or she has received proper education and introduction into how it works. For this reason, Bridget is not allowed to use the numbers frame.