partitions to masks, to hand sanitizers to protocols. >> reporter: the union challenging the decision to have everyone back in schools and in person and calling the district unprepared. >> the city has failed to deliver a whole number of basic demands that we need in schools. has failed to provide adequate staffing, adequate cleaning in the schools. has failed to provide adequate testing. has failed to address our concerns as people going to the schools. >> reporter: kiana is an educator at park manor elementary. her children also attend public schools. >> i am afraid because i have a husband, i have a young child. i have a 90-year-old grandmother with underlying health conditions and issues. so i would just appreciate being able to work in an environment where at least the students are all pcr tested weekly and we have their results to go to in-person instruction. >> reporter: the mayor and district leaders insist schools aren't a significant cause of the virus spreading and warn