The current debates about the future of mathematics education often lead to
confusion about the role that research should play in settling disputes. O
n the one hand, researchers are called upon to resolve issues that really a
re about values and priorities, and, on the other hand, research is ignored
when empirical evidence is essential. When research is appropriately solic
ited, expectations often overestimate, or underestimate, what research can
provide. In this article, by distinguishing between values and research pro
blems and by calibrating appropriate expectations for research, I address t
he role that research can and should play in shaping standards. Research co
ntributions to the current debates are illustrated with brief summaries of
some findings that are relevant to the standards set by the NCTM.