Parents and teachers should be in constant communication. Weekly phone calls or notes home are a good way to keep in touch. The teacher should let parents know about how much work was completed and how focused the student was. The child should be held accountable by the parents and should make up any missed work that was not completed because of distractions.
Speak to your child about how he feels he could be more focused. Suggest a different seat in the class. Perhaps moving him right next to the teacher or with a different group of students will help him stay on track. If there is a more quiet side of the room, that might be a good seating place as well. Once you have spoken to your child, speak to the teacher to see if these suggestions can be accommodated.
Encourage learning in a fun way to try to keep students focused. When studying math in school or at home, try playing math games or drawing pictures to help with word problems rather than just doing math problems from a book. During reading time, try acting out stories or using puppets rather than always reading silently.
Students who are not focused tend to have difficulty with organization. Try working with students to organize their work. Create homework folders and labeled notebooks to keep things tidy. Create folders or binders for loose papers and encourage the use of checklists to make sure that everything has been completed. Once the students are organized, they won't be wasting time looking for lost items. This will give them more time to pay attention and stay focused.