Visits to museums and science centres are a part of most school science programs- but are they really learning experiences? By accompanying classes on visits and talking with the teachers and students during and after these visits, information has been gathered on the ways in which school groups currently use visits to two informal science learning settings in Sydney- a science education centre and a large museum. Comparison of the teacher and student behaviours on these visits with current views on good teaching/learning practice, reveals considerable anomalies. At the same time, reported studies of museum visitors suggest that family groups use museums for learning in ways which are quite different from the way most school groups do. Can these apparent mismatches be translated into a pathway for developing new approaches to learning in informal settings?