A fifth-grader writes Isaac Newton’s laws of motion in view of first and fifth-grade students at Southfield School in Shreveport, La., May 15, 2018. Southfield fifth-graders, who recently participated in the STARBASE program, taught a Science, Technology, Engineering and Math, or STEM-based lesson to first-grade students as part STARBASE’s school-based service learning project. (U.S. Air Force photo by Airman 1st Class Tessa B. Corrick)