Tamara Barrera goes to the office at 7:30 a.m. She checks her emails, looks at the schedule and gets everything ready when the first child walks in at 8 a.m. A half hour later, when all the children are...

A student smiles, waving, and socializing with all her peers in the hallways. The student is in all honors classes, participates in school events and is always in a good mood. Her life seems perfect to...