ABSTRACT
The past thirty years have seen worldwide investment in changes in the teaching of science. The 1960s saw large scale curriculum development in the USA in the sciences, in physics (PSSC), chemistry (CBA and ChemStudy) and biology (BSCS), followed in England by more than a dozen projects sponsored by the Nuffield Foundation, of which Nuffield Physics directed by Eric Rogers was an early and influential one. Many other countries followed, adapting these ideas or developing their own.
