The notice of intention to change the boundaries of the divisions shall be published at least once a week for two weeks before the time appointed for the hearing in some newspaper or newspapers published in each of the counties in which any part of the district is situated.
At the time and place appointed for the hearing, or at the time and place to which the hearing may be adjourned, the board shall hear all the objections and petitions which are presented to the board, and, thereupon, the board may make such change or changes in the boundaries of the divisions as it determines to be for the best interests of the district.