• Help your teen get onto a regular schedule that includes time each day for studying, exercise, eating, socializing, and sleep.  Ask your teen about assignments and tests on a daily basis. Show an interest in what he/she is learning and what he/she thinks. Don’t wait until report card time to ask how it’s going.
• Help your teen learn how to keep track of assignments. You might buy a special notebook or a day planner. Show him/her how you keep track of your schedule. 
• Provide a quiet, well-lit space away from distractions and with the proper study materials. 
• Try to find a separate space for each child. 
• Limit TV time, and do not allow it during homework. 
• When possible, be available to answer questions or discuss what your teen is learning. 
• Advocate for your teen at school and build relationships with his/her teachers.

Source: www.familyeducation.com