Επισκόπηση των απόψεων Ελλήνων μαθητών της δευτεροβάθμιας εκπαίδευσης στην περιοχή των ηλεκτρικών κυκλωμάτων

Περίληψη

The aim of this study is to investigate the informal ideas that secondary school pupils hold in the domain of electrical circuits. The research was based on a written questionnaire given to 1037 Greek pupils attending Gymnasium and Lyceum (ages 13-17). For the statistical treatment of results, the confidence interval method was used. Among the findings were that some ideas are conserved even after the formal teaching of electrical circuits. Thus, several pupils when interpreting and/or predicting electrical phenomena, they do not differentiate the concepts of electric current and electric energy, and use causal relationships involving only the actual number of batteries and bulbs included in a given circuit. Also, after the teaching, a considerable number of pupils appeared to treat changes occurring in parts of circuits in a local and sequential way. Finally, implications of these pupils' alternative ideas for the teaching are analyzed, and suggestions are made for its improvement.