Silly Questions Amnesty Jun 14, 2013 Getting to the end of exams, now. Any last-minute silly questions? A selection of other posts Nov 18, 2020 Ask Uncle Colin: Angles and roots Aug 1, 2012 Those medalling kids: knockout tournaments and who wins what? Mar 28, 2012 What is a circle? (and how do you answer C2 questions about it?) Jan 23, 2012 How to do calculus with $a^x$ subscribe via RSS