In this paper the authors argue that subject-related educational research c
an play an important role in trainee teachers' learning since it provides a
disciplined perspective from which trainees can derive new ideas and under
standings related to their own developing practice as well as a critical ba
sis from which to formulate, examine and justify their views through refere
nce to a wider, collective pool of experience. However, the authors strongl
y argue that research will only contribute usefully to trainees' learning p
rovided certain fundamental principles governing the inclusion of research
within the structure of the training course as a whole are applied. In the
first section of the paper the authors define ten necessary principles whic
h determine the conditions for successful use of research-based ideas in tr
ainees' learning. Research-based ideas introduced on a training course, it
is argued, must be seen by trainees, and subject mentors, to have a signifi
cant practical relevance with regard to classroom practice. The ideas and a
rguments must be carefully selected and strategically integrated within a c
ourse and must elicit informed critical evaluation. The second half of the
paper consists of two illustrative examples of how these principles are app
lied in the integration of two research-based ideas ('inductive grammar tea
ching' and 'Interpretations of History') on the Modern Foreign Languages an
d History PGCE courses at the University of Cambridge School of Education.