All Milwaukee Public School students are back in school this week – virtually . Tuesday was the first day for traditional start schools, which includes most elementary students. High schools and middle schools, most of which are on the district's early-start calendar, started on Aug. 17. 'It's Like Everybody's First Year Teaching Again': MPS Prepares For Virtual First Day Of School MPS held a press conference and took reporters on a tour at Siefert Elementary School Tuesday. Kindergarten