1 hour In the second semester practicum course for school librarians, students work with a field supervisor to complete 1 formal observation and 3 informal observations in compliance with the Texas Administrative Code. Students continue working with a mentor to accumulate a minimum of 50 additional practicum hours in a school library setting. The tasks and hours completed in the practicum are documented using the Practicum Task Checklist/Timesheet combined form. Students also take the official school librarian practice exam.