What a lovely post to read, my 13 yr old DS is diagnosed Dyspraxic, and i have found that all the help and support we had in Primary school, went out of the window once we hit Secondary.. So it's lovely to see someone within the system who cares! 
The problem as i see it is that not only do teachers forget who has what, but ultimately do they understand what Dyspraxia is? Generally speaking i would answer no at my sons school.
The amount of 'lacks concentration' and 'tends to fidgets' comments i have had is unbelievable. Despite the SENCO repeatedly putting up my DSs profile up in the staff room, i still have reactions of 'Oh, i'm sorry i didnt know he had Dyspraxia' at every parents evening, but do they know what the characteristics are anyway? or how to deal with them positively?
After a year of 'fighting' i think i may have finally got messages through, simple things like gently calling DS back into the class once his mind has wondered off, checking that he writes his homework down in his diary etc.. all totally obvious!
Yes, DS has been internally excluded, and put on report 3x this year, but it could have been avoided - its the constant lack of understanding by the teachers that make DS angry, and theres not enough TA assistance in his classes (sometimes none). He gets confused/ frustrated if things go wrong and he's questioned - sometimes even admitting to things he didnt do, because he 'just wants it to stop'. Bad behaviour is not typically a part of dyspraxia, reacting a certain way to certain external situations can be. Last week he started 'anger management' which is more like one to one counselling, on the school premises, (my instigation) and he has a specific mentor in the SENCO dept. to go to when things go wrong (again my instigation).
There is a book called 'Developmental Dyspraxia' - A manual for Parents and Professionals, by Madeleine Portwood, which helped me understand a lot. Also a Dyspraxia Foundation that have leaflets, advice etc.
Your pupil is very lucky to have someone like you!