This is the second 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 second section, nine videos teach students how to solve linear equations with two variables including using a table and graphing. After viewing the videos, students can test their knowledge through a variety of practice problems. See the main Math Video Resources page for an introduction to this video series.