This is the comment I just left on the blog: I will have to read the paper in more detail, but I have an extremely simple reason why math education in the US is so hard: We use the English system of measurement. Most students in grade school associate math with this horrific measurement system, and once that happens, there is almost no chance to engage students in what math is really all about. You want people in the…
Likewise, Fahrenheit temperatures are perfect for weather since the 0-100 scale consistently matches the spectrum from "especially cold day" to "especially hot day".