The Cambridge Senior Mathematics for Western Australia: Mathematics Methods Units 1&2 Online Teaching Suite combines the teacher edition of the Interactive Textbook with a world-class Learning Management System (LMS). Full access to the Interactive Textbook and PDF Textbook is also included for teachers. The Online Teaching Suite is available as a calendar-year subscription. Your subscription term is defined as follows: if activation occurs between January and July of this year, subscription concludes on 31 December this year. If activation occurs between August and December of this year, subscription concludes on 31 December the following year.