Many teachers may not think twice about dumping the contents of the class aquarium into a stream when the school year is through. Now, while living on an island in Lake Erie, they can learn why that’s a bad idea. The Great Lakes Education Workshop, which incorporates Great Lakes environmental issues into teachers’ curriculums, is offered for the first time in three years, thanks to a recent Great Lakes Restoration Initiative grant. It is an interdisciplinary course where teachers can take part in field work and hands-on labs, said Rosanne Fortner, who heads the Ohio State University-based program. Held at Stone Laboratory at Lake Erie, teachers meet researchers and gain access to EPA equipment while living on the islands of Lake Erie.