Auteur principal			Co-auteurs(s)
Nom :	Ms Natalie Jakucyn		Nom :
Courriel :	njakucyn@glenbrook.k12.il.us		Courriel :
Institution ou compagnie:	Glenbrook South HS		Nom :
Département:	Mathematics		Courriel :
Ville :	Chicago		Nom :
État/Province :	IL		Courriel :
Pays :	USA		Nom :
Type de présentation:	Conférence :  50 minutes.		Courriel :
Conférence et numéro :	ACDCA ,    Numéro : A24		Horaire :   Local :	jeudi, 10h30   1340
Site Internet :
Titre de la communication :	Using CAS to Develop Precalculus Concepts in a US Curriculum
Résumé de la communication :
Computer Algebra Systems can be used as a pedagogical tool to help high school students learn mathematical concepts. With a CAS, equivalence transformations help to solve nth root and exponential equations as well as to derive inverse functions. Making conjectures from patterns produced on a CAS help in investigating the binomial theorem, exploring the division and remainder theorems, and factoring sums and differences of powers. CAS contributes to the use of multiple representations (tables, graphs, and the symbol manipulator) to provide various ways to consider the definition of even and odd functions. Four years of anecdotal evidence in a US high school suggests that appropriate use of a CAS enhances students' understanding and performance.