Square One TV is an American children's television program. It was produced by the Children's Television Workshop. The purpose is to teach mathematics to young viewers.^[1] It was aired in 1987-1992 and 1995-1996, reran aired in 1992-1994 and 1999-2002. This series is rated TV-Y.

Square One features a variety of short events all with a mathematical theme, for example Mathman, a parody of Pac-Man; Mathnet, parody of Dragnet, and Late Afternoon with David Numberman, parody of Late Night with David Letterman.

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