Friday, February 24, 2017

Green Screen

If you've ever watched the weather segment on your local news, you've experienced green screen technology.  While it isn't exactly brand new, it is still exciting!  

What is green screening exactly?
It is a video technique that utilizes a green background in front of which moving subjects (like students!) are filmed and which allows a separately filmed background to be added to the final image.

What equipment does it involve?

  • Green background - in the HS and MS libraries, we have green screen kits that look like the picture below
  • Green screen app - we have an app called DoInk on our iPads for students to create images and videos using different backgrounds
Image result for chromakey green screen kit

How can we use it?
Honestly, the possibilities are endless!  To give you a few starters,
  • Mrs. Travelpiece's 9th grade English students have filmed a few green screen pieces to use within their book trailer videos.
  • 5th grade science students learned about volcanoes with Mrs. Kramer and Ms. McCormick.  One of the options for the summative assessment was to "report live" from an erupting volcano.  So their background was a volcano, then they filmed themselves giving a news report.  Here is an example:

Why should we do green screen projects?
Projects like this lend themselves well to alternative assessments and creative project-based learning.  Students will learn to plan for multimedia pieces, like a story board.  They would possibly need to write scripts, collect props, find images or videos for their background.  Students acquire knowledge in lessons, then apply it in this sort of project.  Secondary skills are developed as students work with classroom content.

Do green screen videos need people as subjects?
No!  Many green screen projects involve inanimate objects, animation, and stop-motion animation.  So many options!

This sounds cool!  How do I get started?

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