Re: Basic skill of slide rule
The "old fossil" gave me the slide rule and I used it for years
This made me think of the best slide rule I ever saw. Cue: 1977. I'm about to start secondary school, and it's the end of the previous academic year (last at primary school). They sent us to the Comprehensive down the road for a tour, and hanging on the wall in one of the maths classrooms was a slide rule.
"Hanging on the wall"? Sure. It was six feet long, for teaching slide rule technique.