Teachers open world to classrooms with virtual reality

In this Friday, Feb. 10, 2017 photo, Amy Williams, a teacher at Elizabeth Forward Middle School, practices with a virtual reality set during a class at the Allegheny Intermediate Unit in Homestead, Pa. In this Friday, Feb. 10, 2017 photo, displayed is a view of downtown Pittsburgh on the screen of a part of a virtual reality set that teachers are learning with during a class at the Allegheny Intermediate Unit in Homestead, Pa.