The State Law is pretty clear;
Universal Citation: SD Codified L § 12-27-20 (through 2012)
12-27-20. Expenditure of public funds to influence election outcome prohibited. The state, an agency of the state, and the governing body of a county, municipality, or other political subdivision of the state may not expend or permit the expenditure of public funds for the purpose of influencing the nomination or election of any candidate, or for the petitioning of a ballot question on the ballot or the adoption or defeat of any ballot question. This section may not be construed to limit the freedom of speech of any officer or employee of the state or such political subdivisions in his or her personal capacity. This section does not prohibit the state, its agencies, or the governing body of any political subdivision of the state from presenting factual information solely for the purpose of educating the voters on a ballot question.
Source: SL 2007, ch 80, § 20.
You can’t use district property maintained by taxpayers to promote your cause. If your parents want to hold a party at their house after school hours, that is perfectly legal. Does Roosevelt HS have any civics teachers that have a clue, or for that matter administrators? Geezsch!
Maybe this is what they are teaching in government class at Roosevelt HS.
[youtube]https://www.youtube.com/watch?v=SHnnsFeJBL8[/youtube]