For the last several weeks, santero Arturo Olivas has instructed nine Working Classroom students in the traditional techniques of retablo art. Using these techniques, the students created a series of icons representing the new American trinity of consumerism, utilitarianism and militarism. A show of this work, curated by Tey Nunn of the Museum of International Folk Art in Santa Fe, will open at Visiones Gallery on Friday, May 14, with a reception from 6 to 8 p.m. Runs through July 16. For details, call 242-9267.