Mathematics teachers’ constructions of circle theorems in a dynamic geometry environment
Tipo de documento
Autores
Lista de autores
Caglayan, Gunhan
Resumen
This article highlights the details of an ongoing professional development study in the area of mathematics teacher education; with particular attention to mathematics teachers' constructions and sense-making of a variety of circle theorems involving arcs, segments, chords, tangents, and secants using GeoGebra dynamic geometry software. One of the main findings is that mathematics teachers visualized the circle theorems via constructions mostly of well-behaved (appropriately constrained) nature, although there were instantiations of premature constructions at times. Whereas teachers were successful in demonstrating and justifying the visual proofs of circle theorems on the dynamic geometry software, confirmation of these visualizations via analytical approaches proved challenging.
Fecha
2016
Tipo de fecha
Estado publicación
Términos clave
Construcciones geométricas | Desarrollo del profesor | Software | Teoremas
Enfoque
Nivel educativo
Idioma
Revisado por pares
Formato del archivo
Volumen
46
Rango páginas (artículo)
205-219
ISSN
18150640
Referencias
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