The childish
My sister was diagnosed with developmental retardation by a psychologist when she entered school because she thought long before responding. However, the sister graduated from school with a gold medal, the institute with a red diploma and works in the specialty. She is a physicist (not a teacher). So if the child is quiet, silent and long thinking about the answer, it does not mean that he is ameba. And shutters in this case do not distract, but prevent from thinking.