[quote]Finally, we are trying to boost mental arithmetic skills. I'm no maths genius but even amongst those I teach aeronautical subjects to (talking 14-16 year olds), super simple mental arithmetic poses a much bigger challenge than I'd ever realised.[quote]
A totally brilliant idea, though, I suspect that many youngsters (these days) might have huge difficulty in just the one simple task of mentally adding two numbers together! If you could somehow instil the necessity of 'guestimating' simple trigonometry into how to estimate drift/groundspeed problems you might then give your cadets a better understanding of what they have to academically achieve in order to be a pilot. They might then make a better effort with their schooling... maybe? Though, I wouldn't hold my breath!
TCF