Reserving the Library, Lab 137 in the annex, and Lab 226 next door to the library: On the shared drive, click on the Teachers folder. There is a folder called LAB AND LIBRARY SIGNUP. In that folder there are folders for each location.
For the labs, you'll find a Microsoft Publisher file. When you open the file, you'll notice it opens up a calendar page from August. You simply have to click the tab for the month you want. When entering times you want to reserve on specific dates, please use mods since different grades have periods at different times.
For the library, instructions for accessing that calendar will be found in the library folder within the LAB AND LIBRARY SIGNUP folder in the Teachers folder on the shared drive.