     schoolName: null
     schoolAddress: null
     trialRequest: null
-    startDate: null
     classrooms: null
     courses: null
     courseInstances: []

                  Object.freeze(sessions)
                  Object.freeze(session) for session in sessions
                  Vue.set classroom, 'sessions', sessions
            Promise.all([
              @fetchCourseInstances(teacher).then (courseInstances) =>
                @courseInstances = courseInstances

      @schoolName ?= trialRequest?.properties.nces_name
      @schoolName ?= trialRequest?.properties.school
      @schoolName ?= trialRequest?.properties.organization
      @earliestClassroomDate = new Date(trialRequest?.created)
    classrooms: (classrooms) ->
      for classroom in classrooms
        if _.isUndefined(@isClassroomSelected[classroom._id])
