Cutting The Chatter

Eight-year-old Sally brought her report card home from school.

Her grades were good - mostly A's and a couple of B's. However, her
teacher had written across the bottom: "Sally is a smart little girl,
but she needs to improve in one area. She talks too much in school. I
have an idea I am going to try, which I think may break her of the
habit."

Sally's dad signed her report card, putting a note on the back: "Sally
gets it from her mother. Please let me know if your idea works."