Beginning in 1986 and continuing until the expiration of the term of office of any member of the Henry County Board of Education elected to such board in 1984, the Henry County Board of Education shall be composed of six members. Thereafter, such board shall be composed of five members elected from five single member districts within the county, as hereinafter defined. The chair for the board shall be elected from the membership of the board immediately after the members elected to the board in 1986 have taken their seats on the board, and thereafter the board, in like manner, shall elect a chair every two years. Those board members seeking to serve Districts No. 2, No. 4, and No. 5 shall run and be elected from their respective districts in 1986 and shall serve six-year terms. Those board members seeking to serve Districts No. 1 and No. 3 shall run and be elected from their respective districts in 1988 and shall likewise serve six-year terms. The term of office of a member of the board of education, when elected, shall officially begin at the first meeting of the board of education next following the election of any member to such board.