As children develop, their play becomes more flexible and creative. It evolves from the exploration of the sensory properties of objects to simple repetitive play, to relational and constructive play with objects, to functional play, and finally to play that is symbolic in nature (Jordan, 2003; Piaget, 1962; Smilansky, 1968). In the study reported here, we explored the possibility that the emer...

The most popular fragrant cut rose cultivar in Japan is ‘Yves Piaget’, but its petals often become malformed after harvest. These flowers, referred to as “incurved flowers”, are characterized by curving toward the adaxial side which prevents normal flowering and significantly decreases flower quality. It has been reported that jasmonic acid (JA) affects petal growth, could suppress emergence of...

Approaches to the teaching and learning of a chosen topic in geometry can be located somewhere between what are sometimes perceived as two extremes. One such extreme is characterised as “intuitive”; the other as “formal” or “axiomatic”. There seems to be a number of ways of looking at the relationship between these two positions. Piaget ([6] p 225), for instance, appears to suggest a hierarchy ...