Homework hotline
Janae Passalaqna, far left, a teacher at East High School in Pueblo, Colo., and Betty Lee, far right, a retired teacher, listen in as Cadets 3rd Class Casey Evans and Warren Metcalf explain the specifics of 3D printing at the Public Broadcasting Service at Colorado State University – Pueblo, Oct. 24, 2014. The cadets helped Passalaqna and Lee host Homework Hotline, which allows school-aged children to call in with homework-related questions. (U.S. Air Force photo/Airman 1st Class Rachel Hammes)