4
votes
2answers
89 views

What causes student errors on a problem involving differentiating a factorial?

Consider the following maths problem, assuming only a high-school level knowledge of calculus: If $f(x) = x!$, find $df/dx$ Almost all of my respondents seemed to switch on their "mental ...
18
votes
2answers
1k views

Is there a term for individuals who can “visualize” numbers and advanced mathematics?

I recently saw an episode of 60 Minutes about Jacob Barnett, a 13 year old boy who is currently attending advanced physics classes at a local university and was portrayed by the show as being a child ...