Is it possible to get a revision guide for further science, GCSE?
I would go on to the CGP website. The revision guides they do are seriously good and if he revises them well then I would say a guaranteed A/A*. It would help to know what exam board he is doing as well because it will ensure you buy the right type of revision guide. These books aren’t that expensive as well and most are about 4.50 each. But if its only for the next 3-4 months then it might be worth taking the code for the books and looking in Amazon or Ebay. http://www.cgpbooks.co.uk/books_ranged.a… Do check what exam board he is with before you select the book.