Many science educators ...significant doubts re effectiveness of practical work, as it is currently used, for teaching scientific knowledge. Hodson (1991),..
'As practised in many schools, it [practical work] is ill-conceived, confused and unproductive. For many children, what goes on in the laboratory contributes little to their learning of science ... At the root of the problem is the unthinking use of laboratory work'
-
-
-
can be pointless, best if ask question b4 so know what looking for
Piaget’s insight that it is by acting on the world that our ideas about it are formed and develop. Students, therefore, need to have experiences of acting on the world, in the light of a theory or model, and seeing the outcomes.