The authors have been involved in math education for over 20 years. Cathrine Kellison was the president and CEO of Roseville Video. Through Roseville Video, Cathrine created dozens of film pieces including a special on the history of television for the Library of Congress, now on permanent exhibit. Her work has been recognized with top industry awards: Chicago Film Festivals' Gold Hugo award, the Hollywood Radio and Television Society, along with two Monitor awards, a Clio nomination, and an Outstanding Achievement award from Writers Guild of America. For over ten years, she served as an activ...