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"No matter what you call it - chroma key, green screen or blue screen - it's the film and video technique that gives your local TV weatherperson something in common with the Avengers movies: artificial backgrounds inserted behind the action. You simply record your subject in front of a solid green or blue screen, and then add a touch of software magic to change the background. Dozens of free or inexpensive apps allow you to use the technique on your own clips. It's a great way to jazz up your presentations and other videos - or to keep children busy with a weekend project filming their own toys in action scenes. Here's how to get started."

"Green screen technology (also known as chroma keying) offers so many engaging opportunities for students to learn.  It's pretty easy to do, it can be done on a very low budget, it works in lots of subject areas and grade levels, and it's even possible while teaching remotely. In my most recent podcast interview (listen or read the transcript above), I talked with teacher educator Justine Bruyère about the why and the how of green screen videos."

How to blue screen