I am not a teacher but work within a Scottish school. From what I have seen within the computing department you are at the mercy of whatever software package the teacher is comfortable using.
Schools are always behind because:
- Cost of new versions of the licensed software will be incredibly expensive (even with Educational discount)
- Staff would need to re-write their entire course work every year a new version is released.
For example staff are only this year moving across to using Microsoft Office 2010, mainly due to the Windows 7 roll out that has sped up the process because Windows XP is no longer supported.
Office 2010 is newer but still 3 years behind the latest version of MS Office but you also have to remember, if a 1st year pupil started learning on Office 2007 or 2010. Would you be happy that your son was forced to do his exams on the latest version of Office because it was just newly released a few months before?
Quite often the menus and such are in different locations and doing the same task they have been for 3-4 years is suddenly different.
I do feel that teachers need to be faster at adapting though especially when we are still teaching pupils VB6!
Oh and almost forgot to mention, is there no graphic design course within your sons school? Although they don't teach photoshop here (Too expensive) The CDT department use Corel graphics and Corel Paintshop and also Autocad 2013.
So although it's not photoshop, the principals learned on the software will be fundamental to any graphical software package.