Miami-Dade County Public Schools opened its doors to more than 350,000 students on Monday, August 21, 2017, to begin the 2017-2018 school year.This year, a new “Back-to-School Tool Kit” was developed to help parents and students have a smooth transition back to school. The tool kit, which now includes videos, is updated with information about registration and vaccination requirements, school hours, transportation, important dates,...