Now showing 1 - 3 of 3
- ItemHow do we see when the light is not “enough”? Mental representations of pre-service preschool teachers
Τμήμα Επιστημών της Εκπαίδευσης και της Αγωγής στην Προσχολική Ηλικία (Δημοσ. Π.Π. σε περιοδικά)Anthopoulou, Vasiliki; Ravanis, Konstantinos; Ανθοπούλου, Βασιλική; Ραβάνης, ΚωνσταντίνοςIn this article we present a research treating with the study of pre-service preschool teachers’ mental representations on the mechanism of vision in environments with little to no light. After introducing three separate situations within the framework of an individual, semi-structured interview, we concluded that the main mechanism associated with difficulty or absence of vision is, generally, either dim lighting, or the lack of a light source. Furthermore, certain centrations based on experience were designated, such as vision in limited distance, the autonomy of darkness, or vision through “familiarization” with darkness.
- ItemMental representations of 14-15 years old students about the light
Τμήμα Επιστημών της Εκπαίδευσης και της Αγωγής στην Προσχολική Ηλικία (Δημοσ. Π.Π. σε περιοδικά)Ravanis, Konstantinos; Kaliampos, George; Ραβάνης, Κωνσταντίνος; Καλιαμπός, ΓεώργιοςThe study of students’ representations of physics concepts and phenomena constitutes a central part of Science Education research, as they play a decisive role in teaching. In the study presented here, we investigate the mental representations of 14-15 years old students about the light propagation time, before they were taught about it in school. The empirical data was gathered through an interview using three Tasks which involved the evaluation of hypothetical situations. The research data included representations that cause difficulty in the comprehension of the position of a light source in relevance to the light propagation time.
- ItemThermal conduction in metals : mental representations in 5-6 years old children’s thinking
Τμήμα Επιστημών της Εκπαίδευσης και της Αγωγής στην Προσχολική Ηλικία (Δημοσ. Π.Π. σε περιοδικά)Κaliampos, George; Ravanis, Konstantinos; Καλιαμπός, Γεώργιος; Ραβάνης, ΚωνσταντίνοςIn this paper we present the findings of a research on mental representations of thermal conduction on metal of children aged 5-6 years. The research was carried out using interviews of 87 urban area kindergarten students in Greece. Children were asked for predictions and macroscopic descriptions of phenomena illustrated in 3 different tasks during which simple thermal conduction experiments were performed with both daily and non-daily materials. Research results clearly showed that the vast majority of children express mental representations which are far from the scientific models used in education. Moreover, many children can make predictions on heat conduction without being able to analyze their way of thinking. Finally, differences were found in heat conduction on familiar and non-familiar materials used by children. Findings of the current research study are likely to equip teachers with the appropriate basic tools for designing their teaching interventions in the lessons of heat and thermal conduction for children aged 5-6 years.