What is guided access and can I use it to lock down my iPad?
Guided Access helps you to stay focused on a task while using your iPhone, iPad or iPod touch. Guided Access limits your device to a single app and lets you control which app features are available.
You can use Guided Access to:
- Temporarily restrict your iOS device to a single app
- Disable areas of the screen that aren’t relevant to a task, or areas where an accidental gesture might cause a distraction
- Disable the hardware buttons
https://support.apple.com/en-us/HT202612