“…Some studies on graph interpretation have examined the role of science content knowledge using college students and professionals (Carpenter & Shah, 1998;Roth & Bowen, 2001;Shah & Hoeffner, 2002;Trickett & Trafton, 2006) ignoring younger students (Jackson, Edwards, & Berger, 1993;Preece & Janvier, 1992). Other studies have examined graph interpretation by elementary and middle school students during inquiry (Krajcik, Czerniak, & Berger, 1999;Roth & Bowen, 1994;Wu & Krajcik, 2006), but the naturalistic methods used were not capable of isolating the specific background knowledge skills needed to analyze data or interpret graphs.…”