Danny Brown is a mathematics teacher at Thomas Tallis School in Greenwich. He talks about: is he a "mathematician"? (at time 0:21) support and professional networks (1:32) the value of social media (2:38) Twitter (3:09) his mathematics website (4:01) obstacles to his career (5:24) role models (5:37) More information, worksheets and other resources for the undergraduate mathematics curriculum: www.beingamathematician.org