If you were required to take some training and you spend more than $100 at a recognize school, then you could claim tuition.
Otherwise it could be as other expenses, maybe. You have to show that you were required to pay for that to have work, and it is a "cost of doing business".
This is the guide for self employed non incorporated: http://www.cra-arc.gc.ca/E/pub/tg/t4002/t4002-14e.pdf
