This is the fifth topic 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 fifth section, three videos teach students how to simplify radicals. See the main Math Video Resources page for an introduction to this video series.