Children's conceptions of plants as living things are thoroughly analysed during the last decades. Additionally, many researchers showed interest in 'Plant Blindness', the people's tendency to ignore plants and underestimate them comparing to animals. Aim of this research is to validate plant blindness' intensity among Greek primary school…

Plant awareness disparity (PAD), formerly known as plant blindness, refers to the fact of overlooking or failing to perceive plants, perhaps due to poor 'species literacy'. Despite numerous efforts made by scientists and educators over the years, PAD is still present in students at all educational levels. An assessment was carried out on 259…

Problems associated with the environment loom large over the future well-being of young generations. A previous issue of PISA in Focus (PISA in Focus 87) shows that in 2015 many 15-year-old students believed that the future -- their future -- was going to be worse, environmentally, than the present. In particular, only a minority of students…

The development of a diachronic conception of biology has rarely been explored during childhood, except by Maurice-Naville and Montangero (1992). The aim of the present study was to further explore this issue. In the course of an interview, 163 children aged between 6 and 11 expressed their diachronic conceptions of the growth and death of several…

In three experiments, children were asked whether animals, plants, and artifacts that had been damaged could heal through regrowth and whether a person could mend them. Four-year olds realized that both animals and plants could regrow and that artifacts had to be fixed by humans. Three-year olds were less knowledgeable than four-year olds. (MDM)

As the articles in this issue attest, U-shaped curves in development have stimulated a wide spectrum of research across disparate task domains and age groups and have provoked a variety of ideas about their origins and theoretical significance. In the authors' view, the ubiquity of the general pattern suggests that U-shaped curves can arise from…