macOS for Beginners

Mac keyboard shortcuts

By pressing a combination of keys, you can do things that normally need a mouse, trackpad, or other input device.

fn + Arrow up: Page UP
fn + Arrow down: Page DOWN

Free Mac OS X Basics Tutorial at GCFLearnFree

Whether you're using OS X Sierra, OS X El Capitan, or OS X Yosemite, you can still learn quite a bit from this free OS X Basics tutorial.