Collaborate with each other to plan the learning experience. The librarian as well as the teacher should have some goals here. Library goals could be to becoming acquainted with a resource, to become proficient in a resource, etc. While a general encyclopedia can serve as an introduction to a subject, we need to help students become familiar with specialized reference materials or specialized encyclopedias. Decide before you use the Internet what information you need to find.
Teachers can arrange to visit the library during a planning period.
Many libaries have limited staff, and librarians cannot leave the facility when students are in session. Teach students that Internet resources need to be evaluated and how. Demos can be fun, and if you want to arrange a demo for an entire class, we can look at ways to project the images on a screen for easier viewing. Ask your librarian for demonstrations of databases. Ask your librarian for demonstrations of school library web pages.