New to Mac? Get the most out of your mac by learning a few simple shortcuts. It's just like every other skill, you'll need to practice and perhaps re-look it up to remember it. You might recognize these shortcuts from "ctrl +" on a PC, but mac predominantly uses the ⌘ ("command") key instead. There are a number of really useful ones, if you want to learn more, have a look on Apple's help pages. You may also notice that on a mac the shortcuts are conveniently labelled next to the menu options too.
New to Mac? Don't know how to right click? Many people are not aware that you can set up a mac to respond how you want it to. You will also see many students still using the control + click option for right clicking, but that has to be the least efficient. On a Mac it's called secondary click, to change how you secondary click go to System Preferences>Track Pad and change the option under secondary click.
Go to System Preferences and look at all the options. Did you know you can have many different desktops set up at the same time? It's one way students hide what they are doing from us, a quick 4 finger swipe and they are on a completely different screen. I am a fan of the 4 finger swipe, the 3 finger drag for moving windows around and the 2 finger right click. In fact I can use my track pad without making a single clicking noise. Others I use are the 4 finger upwards swipe to reveal Mission Control. Combine this with hot corners and you are becoming a very efficient mac user.
Have a look at Mission Control, to get there initially press F3. You will see you can have different desktops and you can even drag an application between desktops.
If you have two Mac computers close by you can send files easily within a few clicks. Simply have each computer open Finder > AirDrop. Then you are able to drag and drop a file or a folder into the users computer, they can accept and it will download to the "downloads" folder. This is great for sharing big folders, and probably quicker than an online solution.
There is no need for third party software, the functionality is built right into your mac. Find QuickTime Player then click File>New Screen Recording and follow the instructions. Just be sure to enable the 'Built-in Microphone', the default on my mac has always been 'None' and there is nothing more frustrating than making a tutorial video to find it didnt record your voice.
Sometimes things stop working, and you might see the 'spinning wheel of death' - it happens, even on a Mac. On a Windows PC of old you had "ctrl, alt delete" and most became very familiar with this. On a Mac there is something similar but it is "option, command + esc". Pressing this brings up the force quit menu and from there you can end any pesky unresponsive program. There are other ways, like clicking the apple or right click on the application and it appears on the bottom of the dock's menu bar.