Social pretend play is interpreted as children's spontaneous co-constr
uction of shared realities, and theoretical questions about the qualit
y and varieties of these realities are raised. The discourse of three
girls (ages 4:9 to 5:11) during an entire play session was coded in te
rms of its sense and reference and was analyzed as an instance of Goff
man's concept of social frames. In contrast to the usual pretend-reali
ty dichotomy, this analysis specified 13 reality modes, from deeply en
grossed play action to nonplay interaction. The interweaving of the di
fferent modes carried the in-frame play theme to completion, even as p
ersonal concerns continually impelled the children's interactions part
ly or fully out-of-frame. From a constructivist developmental perspect
ive, a theoretical view is advanced regarding the society-instituting
function of pretend play.