Some children find it really hard to concentrate on one thing for a long time. They get easily distracted while performing a task as a result of which tasks may be left unfinished. Such children may get attracted by what is happening around them, sudden sights and sounds and quickly change from one activity to another. As a result of poor concentration they may make many careless mistakes and have difficulties while doing school work and homework. Attention deficit can lead to poor memory, organization and planning.