I used to teach across five secondary year groups. Those were the days of getting up at 6am, being in school at 7.15, leaving at 3pm and working until 11pm.
What takes up the non-teaching time? Marking books/tests/projects (and sometimes essays for external prizes), planning schemes of work, photocopying, recording results, identifying weaknesses, planning an emergency lesson to reinforce a particular concept, differentiating work, writing reports, department/school/smt meetings, finding new resources, researching how to deliver a lesson about a slightly different concept, pastoral care meetings, parents evenings ...
It is more than one full time job. In fact, it's a bloody joke. I actually started drinking during those years.
How to put it in a different way?
Imagine you are an actor who has to perform a three different two hour plays a day, plus also monitor the audience during intervals. And you also have to build the stage set, and plan the lights and sound. And write the plays. And write reports on audience participation and interest. And hold meetings with the theatre owners to ensure ticket sales are high and you are performing the right plays for the right people. And you also have to write and print the programmes to go with each individual play. And the plays need to change every day. And you have to assess the audiences understanding of your plays by interviewing or testing them. And people's lives depend on you performing the right play to them at the right time.
And then on top of all that, yourare then supposed to infuse key messages about personal health, diet, exercise, citizenship, values etc into said plays. And turn up in the right costume at the right time in the right frame of mind. And you are also subject to theatre critics who appear in your audience and mark you on a range of things you have very little control over.
It's bonkers. It's utterly undoable. And it really is about time someone with some serious power and authority said this out loud.
I left teaching, despite adoring my pupils. I have no idea how teachers today deal with it.