When you're editing any page on the Infoteach Wiki you can link to any other page, whether it exists or not.
Supposing you are creating or editing a page called Upcoming Events, and you want to link to a page called Events in Brighton. This page may or may not already exist; it doesn't matter and you don't need to know. All you need to do is put the phrase Events in Brighton somewhere on the page you're writing, and place it in double square brackets, like so:
This can be in a list or part of a sentence; you can create links anywhere. When you save your page, the text will be converted to a Wiki link - a link to the Events in Brighton page on the Infoteach wiki. If that page already exists the link will be blue, and clicking it will take you to the page. If the page doesn't exist yet, the link will be red, and clicking it will take you to the page editing form so you can create the page.
Placing links in your pages is a key part of helping the Wiki grow; blue links help users navigate though the Wiki, and red links encourage expansion.
If you'd like to experiment with creating links, please use the Sandbox.