Resident physicians spend numerous hours every week teaching medical studen
ts and fellow residents, and only rarely are they taught how to teach. They
can, however, be taught to teach more effectively. Teaching skills improve
ment initiatives for residents are taking a more prominent place in the edu
cational literature. Limited evidence now suggests that better resident tea
chers mean better academic performance by learners. A small but important b
ody of research supports selected interventions designed to improve residen
ts' teaching skills, but not all studies have demonstrated significant educ
ational benefits for learners. An increasing number of valid and reliable i
nstruments are available to assess residents' clinical teaching, including
objective structured teaching examinations and rating scales. In all specia
lties, rigorous research in evidence-based teacher training for residents w
ill help prepare academic medical centers to meet the diverse and changing
learning needs of today's physicians-in-training.