Here are some quick step-by-steps to set up your iPad.
Run 2 fingers down the screen to activate the tool.
Now that your iPad is set up, open up the website you need in Safari (for example their Journeys test), orient the iPad vertical, run 2 fingers down the screen to open up the reader tool, and let your students go. Of course you should monitor them initially to make sure they can adjust the reading speed and pause, but they will adapt quicker than most adults.
If you have any questions, please let me know. Robin Fox, TIS (firstname.lastname@example.org)