This story was originally published at Prism. In a Feb. 24 announcement, teachers with the Saint Paul Federation of Educators (SPFE) and the Minneapolis Federation of Teachers (MFT), which includes both teachers and Education Support Professionals, announced an intent to strike. Filed with the state of Minnesota’s Bureau of Mediation, the intent to strike was authorized by the board in a vote counted Feb. 17 and provides a legally-mandated, 10-day warning to the school districts about a possible strike. The demands from both unions to their districts have been similar. They are asking for limits on class sizes, wage increases,…