Teachers working with SSI experience that there is a tension between educational arguments for devoting
time to developing students’ understanding of scientific processes and the classroom reality. They often find it
more important to reproduce scientific facts than to develop the idea that scientific knowledge has a degree of
tentativeness associated with it (Bartholomew, Osborne, & Ratcliffe, 2004). Moore, Edwards, Halpin, and
George (2002) reported that teachers tend to incorporate new policy into a largely unaltered practice due to
belief systems that are more important than the new curriculum. Teachers often feel insecure about the extent to
which they should be involved in the classroom discussions (Bryce, 2004).