Iowa Const. art. IX, 1st div., § 12
The board of education shall provide for the education of all the youths of the state, through a system of common schools and such school shall be organized and kept in each school district at least three months in each year. Any district failing, for two consecutive years, to organize and keep up a school as aforesaid may be deprived of their portion of the school fund.*
*This provision appears to have been superseded or may be obsolete, see this codified Iowa Constitution, Art. IX, 1st Education, §15; the board of education was abolished in 1864 by 1864 Acts, ch 52, §1
Statutory provisions, see Iowa Code Title VII, subtitles 1 and 6