Hundreds of community education leaders from across Iowa are in Des Moines today for the statewide convention of the Iowa Association of School Boards. Association spokeswoman Lisa Bartusek says an exhibit called “Show and Tell — Share the Success” is popular and valuable.Bartusek says the exhibit enables about 60 Iowa school districts to showcase exemplary education programs and activities.She says some 17-hundred school administrators and school board members are at the convention to learn from their colleagues and share their success stories.The convention is underway at the Polk County Convention Complex and is one of the largest education expositions of its kind.