Peter J. Fensham & Richard F. Gunstone 
Content Of Science: A Constructivist Approach To Its Teaching And learning [PDF ebook] 

First published in 1994. Leading scholars in science education from eight countries on four continents and ex-pert practising science teachers (primary and secondary) wrote about the teaching and learning of particular science content or skills, and hence how different science content requires different sorts of teaching and learning. Having shared the papers, they then met to discuss them and subsequently revised them. The result is a coherent set of chapters that share valuable insights about the teaching and learning of science. Some chapters consider the detail of specific topics (e.g. floating and sinking, soil and chemical change), some describe innovative procedures, others provide powerful theory. Together they provide a comprehensive analysis of constructivist learning and teaching implications.