Mathnasium of Oak Ridges | 13 followers on LinkedIn. Mathnasium of Oak Ridges is your neighbourhood math-only learning centre, where your child can find a tutor who can make them understand and even love math. We help students in grades 2 to 12 understand math with a teaching method that will make perfect sense to them. Here, we use the Mathnasium Method, a tried-and-tested method that has transformed the way kids across the US and Canada learn math.