Services on Demand
Journal
Article
Indicators
- Cited by SciELO
- Access statistics
Related links
- Similars in SciELO
Share
Educación matemática
On-line version ISSN 2448-8089Print version ISSN 0187-8298
Abstract
JUAREZ-RUIZ, Estela; SANCHEZ GONZALEZ, Leticia and JUAREZ LOPEZ, José Antonio. Identification of the development of spatial visual skills in representations and conversion between registers to calculate volumes. Educ. mat. [online]. 2022, vol.34, n.1, pp.157-185. Epub June 06, 2022. ISSN 2448-8089. https://doi.org/10.24844/em3401.06.
The study deals with the identification of the development of spatial visual skills in tasks of representation of solids of revolution and of conversion between registers to calculate their volume, carried out by engineering students. The skills studied are visual organization and scanning, and reconstruction, generation, and manipulation of the image. A predominantly qualitative mixed case study was done. The subjects were 33 second semester students taking integral calculus. GeoGebra-assisted tasks were designed based on indicators created for each skill. The results indicate a significant improvement in skills, with a significant enhancement in image generation and manipulation. These skills are of a high level since they require the visualization of three-dimensional configurations and the mental manipulation of these images. It was identified that the development of these skills contributes to the representation of solids of revolution, but for the calculation of their volume, it is necessary to convert between the verbal, graphic, symbolic, and algebraic registers, to visualize and represent the solid, determine the correct expression of the volume and calculate the definite integral obtained.
Keywords : Spatial ability; visualization; representation; instructional software; learning activities.