Change Carrie’s seat in order to give her new surroundings. Give her and
her classmates something that is easy to do, and expect them to do it.
Use the principle of substitution by changing the work often. If Carrie
whispers in her new location, talk to her privately about it. Show her
your friendship for her in many ways. Never give up the idea that she
will soon stop whispering. Instead of calling out to her so that all
hear you, go to her privately and without faultfinding ask her to stop
whispering. Whenever you observe that she is diligent and has refrained
from talking for a little while, commend her warmly. As soon as she
realizes that you are her friend, and that you really expect her to stop
whispering she will do so.