Pattern-Building When Learning a New Word

Words are fundamentally conceptual—although they are physical objects, they represent something ideational. Just giving students definitions of words or having them evaluate the context of word use does not fully use the brain’s patterning style of identifying information. Th e value of word pattern sorting extends beyond their defi nition to relating words to the pattern of categorization where they fi t. Students attend to how words relate to other words through a number of types of cat...

 The Loss of the "Four Elements"

The disappearance of the traditional world of the ‘four elements’ was revolutionary. It was as radical in the world of chemistry as Copernicus’s proof that the earth was not the centre of the solar system; or (some said) as Robespierre’s claim that the people, not the king, embodied sovereignty. Moreover, it was counter-intuitive: it went against common sense and common appearances. Surely water and air were primary, simple elements? Not at all: chemical experiment and scientific inst...