I had a student with ADHD in my 1st year of teaching. He did not like to write but was able to answer questions accurately when called upon. Often if the lesson was a bit long, I would give him the chance to stand and walk around in form of doing tasks ( passing out books,  getting the lunches, etc). He would enjoy doing these tasks. He was often praised when he does his work correctly. 

Also, due to the fact that he had to take his medication, I keep in contact with his guardian to ensure his medication was taken in a timely manner.