In a classroom, a group of young people disagree over a racist statement by one of them directed at a colleague. The girl is offended, the Portuguese teacher intervenes and suggests that they take the topic to the History teacher, that will certainly be able to help them in the debate. The teacher proposes more than a debate: it takes them to reflect on racism in our society, to look for the origins of racial prejudice and, in addition, to involve other people in the discussion, resulting in a beautiful group work, later presented to the whole class.