“…That is, it must improve teacher classroom prac tice and, by extension, improve student outcomes (Gersten & Dimino, 2001;SnowRenner & Lauer, 2005). Unfortu nately, little is known about the effectiveness of computer ized professional development programs (i.e., both online programs and multimedia software programs) in relation to the imp rovement of teacher classroom practice (Dede, Ketelhut, Whitehouse, Breit, & McCloskey, 2009;Ginsburg et al, 2004;Harlen & Doubler, 2007;Laferriere et al, 2006;Liaupsin, 2003).…”