Moodle's Random glossary block pulls entries from a selected glossary and displays them in a block. It can pull entries from any glossary that is available from that course. In the following screenshot, you can see how to configure it:

Even though the name is Random glossary block, you can control the order in which the entries are pulled from the glossary and how often the block displays a new entry. For example, in the following screenshot, the Random glossary block is set to display each entry in order, and to change each day:

Here are some ideas for using the Random glossary block for something other than a glossary:

• Highlights from the work that past students in this class submitted. If the class is working on a long-term project, create a glossary that contains the best work submitted by previous classes who completed that project. Display the glossary while the current class is working on that project.
• Inspirational or informative quotes related to the field of study.

• If you're teaching in a corporate setting, consider putting rules and procedures into their own glossaries. You can create a separate glossary for each type of rule or procedure, for example, a human resources policies glossary, a purchase order glossary, and so on. Then, display random entries from these glossaries in the appropriate courses.
• Create a glossary with past exam questions and their answers. Students can use this as another resource to prepare for their exams.
• Funny anecdotes related to the field of study.
• Inspiring or amusing images and audio.
• Common mistakes and their corrections; for example, how to spot software bugs or common foreign language grammar errors.