The research that studies the improvement of elementary school students' science knowledge and the development of elementary students' abilities to use the scientific and engineering practices is restricted. The purpose of this research is to study the effects of an instructional intervention on the knowledge of the students of elementary school…

This study documents the mental representations of magnetism constructed by students aged 15-17 and attempts to investigate whether these display the characteristics of models with an inner cohesiveness and constancy; whether they share common features with typical historical models of the Sciences; and whether they evolve through conventional…

This paper focuses on connecting natural sciences education with Cultural Historical Activity Theory (CHAT). In this sense, natural sciences education is considered as a lifelong learning procedure, not seen as an individual but as a collective activity. Moreover, learning becomes a human activity in which theory and praxis are strongly connected…

Children's mental representations about physical concepts and phenomena play a vital role in the learning process. This is confirmed by the data derived from relevant researches which demonstrate that the students formulate incompatible ideas compared with the scientific ones. In this research we investigate the representations of 14-15 years old…

Examined the process by which 79 nursery school pupils age 4 and 5 years discovered the properties of magnetism while playing with magnets and various metallic and nonmetallic objects. Found that the older children were more likely to discover magnetism on their own, while the younger children required the encouragement of their teacher to uncover…