West Branch Freshman Nicholas Madsen and Highland senior Zackery Hansen learn how to lay bricks at the instruction of Apprentice Coordinator Chris Bush of the Bricklayers Local 3 Iowa at the Construction Expo/Job Fair at the Johnson County Fairgrounds on Friday October 11, 2013. Sixteen trade and craft unions were on hand at the Expo/Job fair meeting with over 300 high school students in a special session Friday during the day with the purpose of exposing workers to the opportunities in the Union Building Construction industry. The Construction Expo/Job Fair continues for the general public Saturday from 9:00am to 5:00pm at Building B at the Johnson County Fairgrounds 4265 Oak Crest Hill Rd SE in Iowa City. (Justin Torner/Freelance for the Gazette)