“…Teachers' knowledge of reading has at times been framed in terms of academic preparation or state certification standards (Bader, 1975;Braam & Oliver, 1970;Nolen, McCutchen, & Berninger, 1990;Winkeljohann, 1976), and more recently, there has been considerable discussion of best practice in reading instruction (Baumann, Hoffman, Duffy-Hester, & Moon, 2000;Burns, Griffin, & Snow, 1999;National Reading Panel [NRP], 2000;Pressley, 1998), with inferences about knowledge based on differences in practice. Although there has been research that directly examines the disciplinary knowledge needed to teach effectively in other areas (Ball, 1991;Grossman, 1991;Shulman, 1987;Wineburg & Wilson, 1991), there has been less research on the knowledge base needed to teach reading.…”