In the United States, visits to informal learning environments [ILEs] such as zoos, have historically been considered to be important educational experiences that promote increased student achievement in content-area subjects. Recently, however, funds are more likely to be diverted away from field trip experiences, depriving less-privileged…

This paper shows how the patterns of variation created in the teaching were critical in helping a class of Primary 3 students in Hong Kong to learn about the colour of light, so that the students attained conceptual rather than procedural knowledge. A "Learning Study" approach was adopted, which is a Lesson Study grounded in a particular…