My first 20 or so years were spent developing computer software in a wide range of environments. Most of this was freelance work, through my own company. My teaching has been across the entire Y7 to Y13 age range: mainly mathematics, but also brief stints teaching both chemistry and physics (across entire Y7 to Y13 range). Currently I tutor maths, chemistry and physics: exclusively A-level. I've also published 5 maths books, all of which are regularly purchased. To find out more about me please visit www.getling.org