Auteur principal			Co-auteurs(s)
Nom :	Dr. Rainer Heinrich		Nom :
Courriel :	rainer.heinrich@smk.sachsen.de		Courriel :
Institution ou compagnie:	ministry of culture in Saxonia		Nom :
Département:			Courriel :
Ville :	Dresden		Nom :
État/Province :	Sachsen / Saxonia		Courriel :
Pays :	Germany		Nom :
Type de présentation:	Conférence :  25 minutes.		Courriel :
Conférence et numéro :	ACDCA ,    Numéro : A09		Horaire :   Local :	jeudi, 16h30   1340
Site Internet :
Titre de la communication :	Experiences with the obligatery use of graphic calculators like TI-83 in Saxonia
Résumé de la communication :
We are interdisciplinary members of a research team supported by CONACYT #41596-Y, Mexico. We pursuit some math teaching guidelines for modeling courses at a main Mexican University. At the Summer Academy, we will illustrate some classroom activities from a CAS-based curricula and teaching methods approach. The modeling problem is get the valve diameter of a pipeline entrance as a result of a decision making process from the residual water flow that is poured into one tank of a residual water treatment process. We designed a Maple6 program to generate a data table of the water flow historical records, the correspondent residence time and the valve diameter. The residence time is an intermediate variable and the valve diameter is the key decision. This is very important because is the control for water waste plant. We think that this is the type of problems that we should discuss in a CAS-based teaching of applied mathematics on transport phenomena.