This research addressed children's difficulty in learning science mean
ingfully. A Wittgensteinian analysis of meanings suggests that they ar
ise in successful acts of communication in the context of specific typ
es of shared activity. From this perspective, communication between pu
pils in using scientific ideas should provide a worthwhile, effective
learning task. Concept mapping provides a means of structuring discuss
ion about scientific meanings. The research used primarily qualitative
approaches to investigate the potential for collaborative concept map
ping to improve 9- to 11-year-old children's learning in science. Anal
ysis of the talk in pupil groups identified the processes at work in t
he discussion. The structure of the discussion differed substantially
from common patterns of classroom talk, often involving children in co
llaborative construction of the relationships shown in the concept map
s. The findings show concept mapping to be beneficial for learning, an
d to support sustained small-group discussion of scientific ideas.