Sumdog is one of the more recent contests I have had my students participate in. The great thing with this site is that they run several contests through-out the year. It is a really easy sign-up and easy to set-up classes.
If you haven’t already heard of this site check out the link below:
They have a new contest beginning Friday, Feb 6!
A second contest that I have my class participate in is World Maths Day. World Maths Day is running every second year now. Check out the link below:
Canadian Mathematics Society has yet to update their 2015 info…but keep watch at this address under events:
My students have also participated in the contest from the Canadian National Mathematics League based at the University of Windsor.
Math League Contest: This contest has participants from the United States of America and Canada. Please check out the link below for more information.