Bjorn Wansink and his co-authors have aligned their teaching of a recent and controversial historical issue--the Cold War--in the light of a contemporary incident. This article demonstrates a means of ensuring that students understand that different cultures' views of their shared past are nuanced, rather than monolithic--a different concept in…

The concept of physical and chemical change is far from being the clearest and most self-explanatory concept in the world. If a number of chemists are asked to define physical and chemical change, there may well appear to be a fair degree of uniformity in their answers, until a few examples are suggested. When chemists are asked to place a variety…