After September 1, 1988, no person without a valid Missouri certificate shall:

(1) Engage in the practice of teaching or the performance of education duties in grades kindergarten through twelve in any public school in the state;

Terms Used In Missouri Laws 168.081

  • person: may extend and be applied to bodies politic and corporate, and to partnerships and other unincorporated associations. See Missouri Laws 1.020
  • State: when applied to any of the United States, includes the District of Columbia and the territories, and the words "United States" includes such district and territories. See Missouri Laws 1.020

(2) Act as a school administrator in any public school district.