They need to be repeated several times. It also helps if things are broken down into smaller tasks. Daily assignment notebooks are a necessity to the ADD student. It is a good idea to have teachers and parents check them daily, gradually reducing the amount of assistance a child needs. When possible, have the child repeat the instruction back to check for comprehension.
Homework can be a source of anxiety for the ADD child.
Reduce the amount whenever possible. Remember that it may take an ADD student twice as long to do half the the amount of work as other students. Because children with ADD get easily frustrated, allow for an escape valve outlet such as leaving the class for a moment. Testing can be adjusted by either decreasing the amount to be tested or lengthening the amount of time given. Make sure knowledge is being tested, not attention span.