April 28, 2011 by Rogan Tinsley Leave a comment If I ever see any of my students using gang sines, I’ll be so damn proud of them. [not my (bad?) pun – see below for culprit] proofmathisbeautiful: paris87: (via:kristynsed) GANG SINES pretty fucking good. AWESOME! Share this:TwitterFacebookEmailLike this:Like Loading... Related Author: Rogan Tinsley Biology, science and maths teacher with a PhD in Neuroscience and passion for education.