Hi, welcome to silkysteps. Your tutor or course provider really ought to of explained what the visit is going to cover on friday so that you're able to prepare for it. They will also have a programme of study sorted so that their learners can make their way through the units in the most effective way.
If possible the best thing to do at the moment is to speak with your setting's management and organise copies of all its policies and procedures, publications like prospectus and any staff handbooks, know your job contract, role and responsibilities and source a
level 3 handbook to support your research.
Hth, enjoy the site & best wishes