I've been teaching for six years now, and when I first started I really enjoyed my job. Without sounding bigheaded, I know that I'm good at my job, parents and students have almost always been happy with me (you get the odd one!), teaching assistants have told me they wanted their kids to be in my class etc. However a lot of things have been brought in (cheers OFSTED and Mr Gove) that have led to me really not enjoying it anymore, and long term I will be leaving teaching in the next five years or so. In a nutshell:
The obsession with ALL children making progress in nice neat sub-levelled increments, and being expected to track and scrutinise the data at every opportunity. And being asked why not if they haven't made progress.
The accountability on staff for ALL children making progress (even if they're school refusers / having a tough time / can't be arsed to work). The performance of our classes (even if you share the subject with another teacher) is now reflected in our performance management and can be used to determine our pay. I am expecting a challenging conversation about mine; despite the fact I shared the group with two people who were off long term sick and I did the best I could!
Being made to write pointless documents that don't help the students at all, but so you can keep them in a folder just in case OFSTED might want to see them (they never do). I'm talking about seating plans that include strategies for dealing with each child and data on each of them, filling in a form after each class does an assessment just to show you've reflected on how the group has done), and doing a reflection on the data of all your classes once a term.
Constant scrutiny from SLT, and never from a supportive perspective. Ongoing 'learning walks' where they can drop in unannounced. I don't mind people coming to see what's going on and to check I'm doing my job right (I am) but these learning walks can be used for capability procedures and are never informal.
The phenomenal marking load, I have ten different classes this year and am expected to mark their books once every five lessons, and assessments on top of that. Each piece of marking is expected to correct spelling, punctuation and grammar, give the students specific tasks to complete, and the students are then meant to complete these tasks, and I have to mark it again to evidence a dialogue between myself and the student. It all has to be written, verbal feedback counts for nothing! I'm not saying I shouldn't have to mark books, but it's all become way too time-consuming and onerous.
The threat of knowing you're only as good as your last lesson observation, and the knowledge that SLT can push you out quite easily (and legally) if your face doesn't fit. I saw it happen to a lot of good teachers last year who either questioned SLT or were high up the pay scale. Mysteriously they started to fail lesson observations and steps were made to put them on competency proceedings (they jumped before they were pushed, as if you go before competency starts it won't be on your reference...)
Constant overhaul of the education system, where changes just seem to be made for the sake of it! For example abolishing levels, but not giving us anything else to use. Rewriting the national curriculum every few years. Changing the GCSE's to give them a numerical value (why?!). I don't fully understand all of the changes and why/how they are being implemented, so I feel sorry for parents.
Being snowed under with additional tasks that are not in my job description, and directed to do things during break / lunch / after school (this may just be my school, but I suspect it isn't). And knowing that you can't refuse, unless you want to be labelled a 'troublemaker'.
The things I like, though, just to not be all doom and gloom: The kids (vast majority are so lovely), the parents (most are so supportive of the job we do and I usually leave parents evening smiling) and my colleagues. The actual teaching aspect, I love being in front of a class. And helping students to succeed (one of my Year 11's came back after her exams to thank me for not giving up on her, another one - one of the naughtiest lads in Year 11 - came to see me on results day to thank me for everything I'd done. Comments like that mean the world). The moment when a student 'gets' a concept and has a lightbulb moment is just amazing.
I used to love this job, but the pressure and stress just isn't worth it. I love the teaching part and working with the kids, the money and the holidays ARE good, I can't deny. But I've felt for a few years that it's just not sustainable any longer. I'm hoping to not go back after my last maternity leave, quite honestly. I'll do something else, possibly doing supply in the short term (as so many people are!).
(Sorry for the ramble!)