Cognitive constructivism is not a unique theoretical framework, pedago
gical approach, or epistemology, but a general, metaphorical assumptio
n about the nature of cognition that virtually all cognitive education
al researchers accept. Despite this unifying assumption, there are man
y different cognitive constructivist research programs and theories wi
thin the community at large. This article contrasts cognitive construc
tivism with several other forms of constructivism in the educational r
esearch community. It then attempts to represent the range of theoreti
cal approaches within cognitive constructivism, pointing to examples a
nd potential educational applications of cognitive constructivist idea
s. Cognitive schema theory receives special attention as an important
theoretical perspective that has been relatively neglected in recent t
heoretical discussions. It is believed to have significant potential f
or building conceptual bridges between information processing and radi
cal constructivist viewpoints.