Explaining how to navigate view

This is a super nooby question, but I can’t explain to my father how to control his view. I’m a Mac user and he has Blender loaded on a Windows machine. I keep telling him to make the grid move and then learn how to control it… Any tips? Tell him to try a mouse?

I think it would been better to ask in Basics & Interface.
Yes you really need a mouse to use blender just hold the scroll wheel in and move around and that is all but if you feeling lucky you can try and move around with the numpad