The specialist knowledge and skills of science teachers is far too easily overlooked and undervalued, due, in part, to the tacit nature of the knowledge that underpins expert science teachers' practice. For science teachers to better recognize, describe, and share their professional knowledge there is a need to develop new and meaningful ways…

Recent years have seen a growth not only in biological knowledge but also, and more significantly for teacher education, in the types of knowledge manifested in biology. No longer, therefore, is it adequate for teachers to retain a Mertonian or a Popperian conception of science. Today's teachers of science need also to be able to help their…