The links above lead to current Ministry of Education definitions, community organizations and Web-based resources related to each exceptionality.

"...In Ontario, children who have behavioural or communication disorders, or intellectual, physical or multiple disabilities, or who are gifted, may require special education services or special education programs in order to enable them to attend school and to benefit fully from their school experience. Such students may be formally identified as exceptional pupils. The ministry sets out definitions of exceptionalities that must be used by school boards after determining that a student is an 'exceptional pupil'."

- Ontario Ministry of Education: Introduction to Special Education
http://www.edu.gov.on.ca/eng/general/elemsec/speced/ontario.html