Music is different now. Finicky CD players are a rarity, for one thing. We hold the divine power instead to summon any song we can think of almost anywhere. In some respects, our investment in how we ...

Student teacher Caitlin Efta works through a lesson with students in Elise Campbell’s first grade class at Lester Park Elementary School in Duluth last year. (Anthony Souffle/The Minnesota Star Tribun ...