Title
Turtle's navigation and manipulation of geometrical figures constructed by variable processes in a 3d simulated space
Abstract
Issues related to 3d turtle's navigation and geometrical figures' manipulation in the simulated 3d space of a newly developed computational environment, MaLT, are reported and discussed here. The joint use of meaningful formalism and the dynamic manipulation of graphically represented 3d figures seem to offer new resources and to pose new challenges as far as geometrical activities and construction of meanings are concerned, which are strongly related to the representational infrastructure of MaLT. Abilities such as spatial orientation and spatial visualisation come into play and are interwoven with the software's functionalities and semantics. Although the body-syntonic metaphor remains critical while navigating the turtle in the 3d simulated space, it seems that it has to be co-ordinated with other - often conflicting one another - frames of reference. The strong link between spatial graphical and geometrical aspects, that was accentuated by the dragging functionalities of the software, helped students go beyond an immediate perceptual approach, relating geometrical figures with real 3d objects and the change of planes in 3d space with physical angle situations. In this framework the concept of angle as turn and measure with emphasis on directionality but also as a relationship between the planes defined by 2d figures has arisen as central.
Year
Venue
Keywords
2007
Informatics in Education
spatial orientation,3d logo,new resource,geometrical figure,new challenge,geometrical activity,spatial visualisation,dynamic manipulation,spatial graphical,variable process,frames of reference,angle.,simulated space,geometrical aspect,angle,frame of reference
Field
DocType
Volume
Computer science,Visualization,Human–computer interaction,Software,Artificial intelligence,Formalism (philosophy),Frame of reference,Perception,Semantics,Metaphor
Journal
6
Issue
ISSN
Citations 
2
1648-5831
2
PageRank 
References 
Authors
0.47
3
2
Name
Order
Citations
PageRank
Chronis Kynigos15313.82
Maria Latsi220.47