Hi there. Due to your son's specific needs, teaching him is not 'easy' in the formal sense of the word. His attention span will be very short and if he becomes bored or irritated that the work is too difficult he will inevitably give up or look for an excuse to get out of it all together. This is the way with ADHD.

There is no easy solution, but you as a parent have a very important part to play in his learning. You obviously have a computer linked to the internet and there are many ineractive educational learning sites that will help to support your son's education in a fun way. Get him involved with the family shopping, making lists and working out costs etc.. Also encourage him to develop a manual skill which he will find much more enjoyable (painting, pottery, Design and technology, brick laying, wood work, car maintenance etc. or anything he may be interested in). These will teach him skills in a fun and focussed way without him being made to feel inadequate, also helping to see a future for him without the need for structured learning in maths, english grammar, science etc.

Your son is most probably using the label of 'the class clown' as a place to hide because his self esteem is very low in the more academic areas of his schooling. This is why you can do so much in supporting the areas he does excel at. Good luck