Mac Tech Tips - ScreenShot - Screen capture Command shift 3 and 4 AtTechEdu Tech Nuggets - 4 useful tips for Mac users - tips for teachers in the classroom ScreenShot Have you needed to take a picture of your screen so you can use it in a presentation? Have you wanted to take a picture of a section of the screen? See how and watch the video. https://youtu.be/4XftzdSrnJ8 OTHE MAC TECH TIPS AND VIDEOS Caffeine A great app that will keep your computer awake during those all important lessons and presentatio