MADISON, Wis. — Three Black parents and their two children filed a lawsuit against a suburban Madison school district Friday alleging teachers inflicted emotional stress on students when they presented a lesson asking how to punish a slave. The plaintiffs — Priscilla Jones, Dazarrea Ervins and David Ervins Jr., and their children, George Brockman and Zayvion Ervins — are seeking $75,000 in damages from the Sun Prairie Area School District, and a court order requiring the district to ban assignments that aren’t part of district-approved curriculum and to provide diversity training, the Wisconsin State Journal reported. District officials declined to comment on the lawsuit.