What is the role of a director of a business corporation?

Both in Canada and in Quebec, the directors take charge of the management of the business corporation. "... the board of directors exercises all the powers necessary to manage, or supervise the management of, the business and affairs of the corporation." - Section 112 of the Quebec Business Corporations Act. "... the directors shall manage, or supervise the management of, the business and affairs of a corporation. "- Section102 (1) of the Canada Business Corporations Act.