Oxford Hills Technical School instructor Dave Langevin tests out a Tic Tac dispenser designed by Cody Roy, center, who looks on with classmate Cam Sherbinski. Roy and Sherbinski are students in the technical school’s pre-engineering program. Brewster Burns

Oxford Hills sophomore William Kasperek assembles an ethernet cable during the Oxford Hills Technical School’s Tech Challenge. Kasperek takes the school’s Computer Technology/PC repair program. Brewster Burns

Ashley Richardson assembles some framing as she competes against her classmates in the Oxford Hills Technical School’s Tech Challenge. Richardson, a senior, takes Building and Construction Technology with instructors Danny Daniels and Tony Stevens. Brewster Burns