To access the internet or use an app that required internet access (e.g. Kahoot) the iPad needs to authenticate on the router that provides and filters internet access at the school.

If the iPad is not authenticated a web browser page will have the error
“Your Connection is Not Private”

From the iPad home screen select the Internet icon – bottom left.

This is a shortcut ( Web Clip) to the site detnsw.net

Log in with your username.
This is the same as on a laptop

Tap Login 

Refresh the web page or app that was not working