Rosemary Heffernan, a 7th grade math teacher at the Lincoln Brooks School in Lincoln, Massachusetts, accepts flowers and an apple pie in honor of Pi Day (March 14, or 3.14) courtesy of Raytheon Company. Recognition of Pi Day is a part of the company's MathMovesU® initiative that encourages kids to pursue careers in the science, technology, engineering and math fields. (Aynsley Floyd/AP Images for Raytheon Company)

Associated Press
Rosemary Heffernan, a 7th grade math teacher at the Lincoln Brooks School in Lincoln, Massachusetts, accepts flowers and an apple pie in honor of Pi Day (March 14, or 3.14) courtesy of Raytheon Company.  Recognition of Pi Day is a  part of the company's MathMovesU® initiative that encourages kids to pursue careers in the science, technology, engineering and math fields.  (Aynsley Floyd/AP Images for Raytheon Company)
Rosemary Heffernan, a 7th grade math teacher at the Lincoln Brooks School in Lincoln, Massachusetts, accepts flowers and an apple pie in honor of Pi Day (March 14, or 3.14) courtesy of Raytheon Company. Recognition of Pi Day is a part of the company's MathMovesU® initiative that encourages kids to pursue careers in the science, technology, engineering and math fields. (Aynsley Floyd/AP Images for Raytheon Company)
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