I was a secondary school teacher for 10 years or so. I am now a HLTA in an infants school.
My role has varied over the past 5 years (started as a level 3 TA, now a HLTA; started in Y1 - now mainly in Y2 but teach some Y1 and EYFS too) but I do enjoy it. I do a lot of teaching, as well as class support. I teach whole classes, and then do some group and individual work.
Class support - I do this in Y2 at the moment 4 mornings a week, supporting the class teacher mainly in literacy and numeracy.
Interventions - I plan, deliver and assess. Might be Maths, phonics, literacy, reading, etc. I also do an early morning intervention before school starts 3 days a week whih involves selected children and their parents.
PPA cover - I plan, deliver and assess. I teach Computing (I was a Computing teacher at secondary). This year to Y2 and also an EYFS class, 4 afternoons a week.
E-Safety co-ordinator - I am in charge of this, run training for pupils, staff and parents, keep documents/policies up to date, etc.
I am also responsible for all our iPads and keep them up to date, etc and run staff training about various apps, their class use, etc.
I also unofficially lead ICT/Computing across school, becoming more official from September. So I attend various courses about the new curriculum, am looking at developing the new scheme of work for our school, training staff, etc.
So - all very varied and all very busy! But I love it.