I'm an old guy and after periodic immersions in STEM classes have started thinking we should reverse the way subjects are taught. I'd get more out them if they were used to build a house (on paper) or flashlight with its parabolic reflector, or in the market (stock and super) to find best prices, etc. So we'd work from the finished product back to the concepts of parabolas, statistics, electronics, weight distribution and vectors. I guess this is the case study method and seems better than word problems as I've never had to determine when I'd meet someone driving towards me on a road at 50mph when I was moving towards them at 60mph, but did have to understand how much dirt a buried house roof could carry. Is this reasonable?