What's the right amount of homework?

Children’s homework and the time it takes are problems for parents — homework is described as the “thorniest issue” at primary school, by a representative of the Irish National Teachers’ organisation.
Most schools have a homework policy, because parents are puzzled. One primary school, in Kildare, runs homework information meetings for parents, at their request, while one second-level school clarifies what’s expected of first years. When Jen Maher’s eldest, Olive, started at second level, Jen joined the Parents’ Council to become familiar with the homework system. Olive is now in transition year at Colaiste na Toirbhirte in Bandon, and her youngest sister, Alice, is in first year. Jen says a responsible attitude to homework is crucial. Her children are expected to be conscientious.