Trainee Primary Teachers’ Ideas about the Ozone Layer

Abstract

The ideas of trainee primary teachers about the ozone layer have been examined. Students were well informed about the nature and location of the ozone layer and appreciated that it screens the Earth from ultraviolet (UV) rays, although some thought that it protects the Earth from acid rain. Most identified real causes of ozone layer depletion, but many thought that radioactivity and factory and vehicle emissions cause ozone layer degradation. Almost all realised that ozone depletion might cause more skin cancers; fewer recognised other potential biological problems. Many confused ozone layer depletion with global warming. The proportions holding these ideas were similar to those of older secondary school children, suggesting that misconceptions persist to the adult population. Since these ideas were found in final year trainee teachers, there is a danger that erroneous ideas or the attitudes based on them might be perpetuated in a formal learning context.