About Kathleen Corrigan/Matthew Corrigan Books by Kathleen Corrigan/Matthew Corrigan Le Bouclier canadien by (author) Kathleen Corrigan/Matthew Corrigan Ages 9 to 11 Grades 4 to 6 Les hautes terres appalachiennes by (author) Kathleen Corrigan/Matthew Corrigan Ages 9 to 11 Grades 4 to 6 Les basses terres des Grands Lacs et du Saint-Laurent by (author) Kathleen Corrigan/Matthew Corrigan Ages 9 to 11 Grades 4 to 6 La Cordillere canadienne by (author) Kathleen Corrigan/Matthew Corrigan Ages 9 to 11 Grades 4 to 6 Le territoire arctique by (author) Kathleen Corrigan/Matthew Corrigan Ages 9 to 11 Grades 4 to 6