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Math Videos Captioned and Signed in ASL: Perpendicular Lines

Math Videos Captioned and Signed in ASL: Perpendicular Lines

This is the twelfth video in the series of lessons on math provided by DeafTEC. Gary Blatto-Vallee, a math and science instructor at the National Technical Institute for the Deaf, guides viewers through a variety of mathematical exercises in this DeafTEC video series. All lessons are fully captioned, signed in ASL, and voiced. In this 8:50 video, Blatto-Vallee uses an electronic whiteboard to show several examples of graphing perpendicular lines. See the Math Video Resources page on DeafTEC's website for an introduction to this video series.

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