President Barack Obama, Vice President Joe Biden, and Commerce Secretary Penny Pritzker tour a classroom at the Community College of Allegheny County West Hills Center in Oakdale, Pa.

President Barack Obama, Vice President Joe Biden, and Commerce Secretary Penny Pritzker tour a classroom at the Community College of Allegheny County West Hills Center in Oakdale, Pa., April 16, 2014. Students Zach Kuzma and Stephanie Womack demonstrate equipment that teaches students how to manipulate gears, pulleys, sprockets, etc. to adjust the speed and/or torque of a motor or system.