Research on teaching in physical education: a commentary on Silverman's review. 
This commentary discussed the need for a clearer definition of teaching.  Silverman's RT-PE schema was reviewed, and several concerns were raised.  Clark's framework for conceptualizing research methods for teaching was reviewed.  And, finally, the Spectrum of Teaching Styles was suggested as a schema for organizing RT-PE content.  Silverman's review has enriched our discipline, and he deserves our appreciation.  In particular the breadth of his review is noteworthy.  This review should be useful to teachers and should serve as a catalyst for further discussion in the research community about this interesting and important discipline.