I just picked up my 1st form (age 11-12) maths text book which I still have for some reason. One of the exercises listed begins:
"A mortar-shell is fired from a hillock 150m high and its subsequent height is observed at intervals of one second from the time of firing..."
- only in Northern Ireland would I get an education like that! Mind you, I should be grateful - Norn Iron schooling may be the best in the UK, but we were lucky to get text books up-to-date enough to have metres instead of feet in them. I distinctly remember my primary school maths text dealing in pounds, shilling and pence, and that was in about 1985.