Ben Rohrbach, Army Corps of Engineers Nashville District Hydrology and Hydraulics Division chief, talks about water management June 17, 2013 as Teacher Angela Galloway listens. A group of four teachers from Stratford STEM Magnet High School visited the Nashville District Headquarters in Nashville, Tenn., and participated in a teacher externship to develop project based learning curriculum. (USACE photo by Leon Roberts) Teachers building strong STEM curriculum with corps externships 130617-A-EO110-003

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