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Isometries: epistemological insights among secondary students interacting in dynamic geometric environment with touches on screen

Bairral, Marcelo Almeida; Assis, Alexandre Rodrigues de (2022). Isometries: epistemological insights among secondary students interacting in dynamic geometric environment with touches on screen. Revista Internacional de Pesquisa em Educação Matemática, 12(2), pp. 92-121 .

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Resumen

This study investigates secondary students’ understanding of isometry (symmetry, rotation and translations) using dynamic geometry environment with touchscreen (DGEwT). The research question addresses issues concerning geometrical reasoning of Brazilian learners without previous knowledge regarding isometry. Data came from videotapes, written notes for each proposed task and on the icon sheet, and from screen recording. The analytical process was mainly based on the geometrical reasoning and related procedures. One designed task is shown and analyzed. Applying reflectional symmetry ideas, using procedures based on straight line and performing simultaneous touches on the screen, students achieved the composition of rotation and translation movement naturally and synchronically. The study highlighted the relevance of isometry in both school and teacher training curriculum.

Tipo de Registro:Artículo
Términos clave:10. Otras nociones de Educación Matemática > Resolución de problemas > Resolución y estrategias
13. Matemáticas escolares > Geometría > Transformaciones geométricas
03. Aula > Recursos didácticos > Recursos informáticos > Software
11. Educación Matemática y otras disciplinas > Fundamentos de la Educación Matemática > Epistemología
13. Matemáticas escolares > Geometría > Relaciones geométricas
03. Aula > Recursos didácticos > Recursos informáticos > _Otro (recursos informáticos)
Nivel Educativo:Educación Secundaria Básica (13-16 años)
Código ID:27707
Depositado Por:Monitor Funes 2
Depositado En:29 Jun 2022 17:52
Fecha de Modificación Más Reciente:29 Jun 2022 17:52
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