A dynamic approach to quadrilateral definitions

dc.creator	Rajendran Govender
dc.creator	Michael de Villiers
dc.date	2011-10-01T00:00:00Z
dc.date.accessioned	2015-08-12T11:29:15Z
dc.date.available	2015-08-12T11:29:15Z
dc.identifier	10.4102/pythagoras.v33i5.130
dc.identifier	1012-2346
dc.identifier	2223-7895
dc.identifier	https://doaj.org/article/837971e4577f4dc19784778d8c4484f2
dc.identifier.uri	http://evidence.thinkportal.org/handle/123456789/30805
dc.description	This study examined 18 prospective secondary mathematics teachers' understanding of the nature of definitions, and their use of the dynamic geometry software Sketchpad to improve not only their understanding of definitions but also their ability to define geometric concepts themselves. Results indicated that the evaluation of definitions by accurate construction and measurement enabled students to achieve a better understanding of necessary and sufficient conditions, as well as the ability to more readily find counter-examples, and to recognise and improve on uneconomical definitions.
dc.language	English
dc.publisher	AOSIS OpenJournals
dc.relation	http://www.pythagoras.org.za/index.php/pythagoras/article/view/130
dc.relation	https://doaj.org/toc/1012-2346
dc.relation	https://doaj.org/toc/2223-7895
dc.rights	CC BY
dc.source	Pythagoras, Vol 33, Iss 5, Pp 34-45 (2011)
dc.subject	geometry
dc.subject	Geometer's Sketchpad
dc.subject	definitions
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	DOAJ:Education
dc.subject	DOAJ:Social Sciences
dc.subject	Mathematics
dc.subject	QA1-939
dc.subject	Science
dc.subject	Q
dc.subject	DOAJ:Mathematics
dc.subject	DOAJ:Mathematics and Statistics
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	DOAJ:Education
dc.subject	DOAJ:Social Sciences
dc.subject	Mathematics
dc.subject	QA1-939
dc.subject	Science
dc.subject	Q
dc.subject	DOAJ:Mathematics
dc.subject	DOAJ:Mathematics and Statistics
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	Mathematics
dc.subject	QA1-939
dc.subject	Science
dc.subject	Q
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	Mathematics
dc.subject	QA1-939
dc.subject	Science
dc.subject	Q
dc.subject	Special aspects of education
dc.subject	LC8-6691
dc.subject	Education
dc.subject	L
dc.subject	Mathematics
dc.subject	QA1-939
dc.subject	Science
dc.subject	Q
dc.title	A dynamic approach to quadrilateral definitions
dc.type	article