ABSTRACT
Designed activity can make the teaching task more manageable, partly because contrived experience raises problems which can more easily be guided to fruitful work than many that appear in the complex world of the natural environment. A strategy would have an effect on another aspect which needs reconsideration, that of providing materials for pupils and more and more direct guidance for teachers. The science of most successful primary teachers has been pure science. If it had been technology, their philosophy and emphasis might have been different and the work of mechanical and electrical construction might have invaded the classroom. Many and strenuous efforts are being made to support and promote primary science. It is evident that if children's own interests have to be a prime source for activity, then some interests, such as space travel or nuclear energy, may need a degree of reliance on secondary evidence that is fully acceptable in other areas.
