Square One is the name of a children's television show intended to teach mathematics and abstract mathematical concepts. The show was a compilation of 5-10 minute segments, each introducing and applying concepts in mathematics such as counting or combinatorics, fractions, estimation, and probability. The clips featured regular characters and were often parodies of culture or popular television shows such as Pac-Man, Music videos, or The Late Show with David Letterman. The show would conclude with a 10 minute episode of Mathnet intended to be a parody of Dragnet.