Permit me to make a tangentially related comment of interest to parents reading this thread: This camp for 11-14 y/o kids: http://www.mathpath.org/ http://www.

Permit me to make a tangentially related comment of interest to parents reading this thread: This camp for 11-14 y/o kids: http://www.mathpath.org/ http://www.mathpath.org/ is absolutely excellent. My kid loved it so much they attended three years. Great faculty... John Conway, Francis Su, many others. If you have a math-loving kid of middle-school age, I encourage you to check it out.