Before you answer the following question, please check this spreadsheet to make sure there's no conflict with another school.
You may sign out multiple exhibits for any length of time, but please allow other schools to have a chance, too. We recommend somewhere in the range of 2 - 6 weeks, perhaps longer if you'd like to move the exhibit from your school to a community library. You can schedule as far in advance as you'd like, even for next year.