This study aims to assess whether the handling of concrete ball-and-stick molecular models promotes translation between diagrammatic representations and a concrete model (or vice versa) and the coordination of the different types of structural representations of a given molecular structure. Forty-one Algerian undergraduate students were requested…

Investigated effects of limited oral/physical teacher intervention on object manipulation by preschool/early elementary children (N=70). Experimental students had magnets placed in their hands and were orally invited to explore. Results indicated differences between experimental/control groups in time spent with objects, number of activities…