1. Guided Access - Guided Access allows the iPad to be locked to an app where the user cannot leave the app. The hardware buttons on the iPad are disabled and prevent the user from leaving the app without a passcode. This could be useful for setting up an app in a station, especially in the single iPad classroom. To engage Guided Access, first go to Settings -> General -> Accessibility and make sure that Guided Access is turned on. You will be required to set a passcode to use it but you can wait to do so until the first time you engage Guided Access. To start Guided Access, triple click the home button and you will see a screen like the one below. From this screen you can turn off all touch and motion orientation and even circle areas where you want touch interactivity to be disabled. Press Start and then Guided Access will be enabled. To leave Guided Access, triple click the home button and enter the passcode to disable.
3. Speak Selection - Speak Selection is the 4th option under the Vision category of Accessibility features. When Speak Selection is turned on, you can select text on a page and when the Copy, Paste, Cut, etc. appear, Speak will be one of the options you can select. Once selected the iPad will begin reading the text you've selected on the screen. By selecting the Speak Selection option in the Accessibility features you can turn the feature on or off, change the voice, adjust the speed, and turn on word highlights which will highlight each word as they are read (a great feature for struggling readers). This feature is good for reading text on websites or helping students sound out words that they may not know.
5. Other features - There are several others features available such as changing the text size, inverting colors (students like to do this - but you can fix it here), adjust home button click speed, change the contrast, adjust sound, attach adaptive accessories and more.