In an NPR story earlier this week, Tovia Smith reported on the growing number of schools that are trying to instill “grit”— perseverance in the face of adversity — in their students. Smith focused on one such school: “Tom Hoerr leads the New City School, a private elementary school in St.

Source: http://blogs.kqed.org/mindshift/2014/03/whats-the-sweet-spot-of-difficulty-for-learning/