Classroom management has been a perennial concern of beginning teachers. Given the significant concern for classroom management evidenced by the beginning teachers in this investigation and in other investigations (Hollingsworth, 1989; Gess-Newsome & Lederman, 1993; Lederman et al., 1994), the development of a wide variety of instructional routines and schemes that allow beginning teachers to feel comfortable with the organization and management of instruction appears to be a critical prerequisite for any efforts to assist beginning teachers’ attempts to promote students’ understandings of the nature of science.