I couldn’t find it easily, what age range is this intended for? The images make it seem elementary-school-ish, but I’m not sure if elementary school kids have the foundations for interpreting scatterplots, let alone scatterplots with logarithmic axes. I’ve been out of education for a while though, so maybe I’m misremembering.
Given the author’s domain is .co.uk, and there’s a reference to part of the UK at the bottom, I’d say this is likely aimed at an average Y10/11 (15-16 y.o.). It could perhaps be used with more able kids lower down the school, but I doubt it would be accessible to any under the age of 13.
