Both rgs and jh point out that their report stages do not equate directly to any gcse predictions, just give you an idea, particularly in lower years. I agree whole heartedly.
They have stage 1/2/3 at jh in year 7 the report bumf clearly tells you (along with lots more detail) that it's the equivalent of ok, good and super, come year 8 they introduce the dreaded 0 I believe!
The effort levels in year 7 are the important ones A/B/C/D anything in c/d means a bit more enthusiasm is required.
More than a few stage 3, he is doing amazingly, more than a few A then he needs a big slab of marvellous creations. 2s and bs, you should be a very happy mummy, 2s and cs then he needs a little chat!
The parent/pupil/form teacher consultation a few weeks back should have given you more explanation of how he is doing and if he has any targets.
The commendation points and dreaded bad boy points, are also listed on the report, I like the way it runs every half term for the year, you can so easily see their progress across the weeks, or dips in enthusiasm (anyone got tips on making German fun for a child who loves Spanish and French!).
Like any report some teachers are a bit more explanatory than others, they do seem to keep the boys involved well though, my son was struggling to get a stage two in history, but his teacher helped him as he could see he was enthusiastic just a bit too imaginative and opinionated for a historian.
Funny though, within one term he decided not to waste his enthusiasm on music, drama,epq or rs, which tbh although I said the right words to him, I am fine about.