The key elements of teacher cultures (and I know these are open to debate) I would identify as:
Synchronous interactions – interactions, with learners and other teachers take place live, in the moment.
They are location based – in a school building – and take place during the school day.
They are led and influenced by senior teachers and Headteachers – schools are built around hierarchies.
Learning is curriculum led.
There is a focus on formal assessment.