If you think of Education as a sandwich (for no good reason) then Secondary Education is the filling.
As all my experience is in Secondary, I am keen to hear more about the bread:
Primary (where they don't seem to learn the basics i.e. how to read, write, sit still and listen without talking or making animal noises) and Further Education (where it seems they go on to study daytime TV)
If I had a pound for every time a teacher asked me the immortal question:
"What the Hell are they doing with them in Primary School?"
"What on Earth are they going to do when they leave here?"
Then I would have enough to buy you all a sandwich.