Alabama K-12 public school teachers retired in large numbers again this year - but raises for experienced teachers appear to have encouraged some to cancel planned retirements, too.

Some schools turning to virtual tutoring have struggled to get students to participate. Communication between tutors and teachers can be spotty, and the scheduling logistics are complex.

While most schools are struggling with recruitment this year, some schools have it harder than others -- whether it's because of stereotypes about the school, its location, or how much its district pays teachers.

The National Center for Educational Statistics on Tuesday released a report that found there were at least 93 incidents involving casualties at public and private schools across the U.S.