Dartmouth Teacher Comes Out of Retirement for Virtual Class Classrooms around the world look entirely different than they did back in 2019. This academic year has shown many challenges, but teachers everywhere have faced them with grace and for that, we cannot thank them enough. A teacher on the SouthCoast is one of many who have proven that if ever there was a time to step up and help when no one else can, it is during a pandemic. Mrs. Sharon Arena-Zanghi is loved by all of her first-grade students in her virtual-learning class within Dartmouth Public Schools. What makes this educator so special is that she came out of retirement to instruct these pupils during the COVID-19 pandemic.