Autograph Team - Sound Mirrors - KS3/KS4
A tutorial video from the Autograph team on Sound Mirrors. Very useful whn teaching algebra. In the 1920s, some very large structures were built along the South Coast of England to deal with the increasing threat of aerial attack. Clicking on the web-link below takes you to all the videos in this series.

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Created: Mar 13, 2011

Updated: Mar 25, 2013

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Creative Commons "Sharealike"

Creative Commons "Sharealike"