Subscribe to magazines for your children. Our advice is no TV, video games, or computer time until the work's done. Make a study area with good lighting and a desk or table. By the way, listening to the radio does NOT help kids study, no matter what they say. Talk about what's happened during the school day.
Students do much better in school if parents show an interest.
Do help, guide, and direct. Oh, and be generous with your praise. Using the student planner is a terrific way to keep your student organized.