The Chess'n Math Association (or Chess and Math Association) is a non-profit organization dedicated to bringing chess into Canadian schools.
Founded in 1985 by Larry Bevand, who still serves as its executive director, it bills itself as "Canada's National Scholastic Chess Organization", although it is not affiliated with the Chess Federation of Canada, Canada's official FIDE-recognized chess organization.
Chess'n Math runs hundreds of tournaments for kids K-12 across Canada, including an annual Canadian Chess Challenge.
It also offers chess lessons and camps, produces a magazine Scholar's Mate, and runs the Strategy game stores located in Montreal, Ottawa and Toronto.
CMA has sponsored several chess futurity events, to provide international title norm opportunities for promising young Canadian players.
As it appears, the number of "expected wins" for one game is equal to the difference in rating divided by 800, plus 0.5.