The board shall exercise general supervision and jurisdiction over the public education and the public school system of the city, and, except as otherwise provided by this Article, shall have power:
Counseling days shall not be in lieu of regular school days;
The specifications of the powers herein granted are not to be construed as exclusive, but the board shall also exercise all other powers that may be requisite or proper for the maintenance and the development of a public school system, not inconsistent with the other provisions of this Article or provisions of this Code which apply to all school districts.
In addition to the powers herein granted and authorized to be exercised by the board, it shall be the duty of the board to review or to direct independent reviews of special education expenditures and services. The board shall file a report of such review with the General Assembly on or before May 1, 1990.
105 ILCS 5/34-18