Text is probably the most basic way to teach, and can be included in all of the LibGuides boxes. This provides guide creators with an almost endless variety of possibilities for inserting instruction and enhancing things like videos and RSS feeds. You'll find a few examples of this below.
Text & Graphics
Text & Documents
Text & Links
Videos can be great ways to teach by themselves - no text needed. Cut and paste code from sites like YouTube into the Embed Video/Audio box. Below, you'll find a couple of examples of library instruction via video: "Searching the ATLA Religion Database" (Duke Divinity School) and "Boolean Operators" (University of Wisconsin Madison).
Slideshows and prezis, like videos, can be great stand-alone methods of instruction. The Rich Text/Dynamic Content/Scripts box can be used to embed code for many of these. The first example below is a Slideshare.com presentation (Yale University Library), and the second one is from Prezi.com.