ABSTRACT
Although it is a medical condition of brain dysfunction, ADHD significantly affects educational performance. It is estimated to occur in 3% to 5% of school children, and is a very common condition in the classroom. At least one child in every 20, i.e. one to two children in each classroom, may have ADHD. The condition can cause difficulties in the classroom in a wide range of ways and in some cases can be difficult to differentiate from normal behaviour. It therefore behoves teachers to have a very good understanding of the condition.
