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Review for "Introduction des notions sinus et cosinus d'un angle"

Introduction des notions de sinus et cosinus

Global comment:

Review filed on 2010/10/13 00:18 by Ionelr.

L'activité est fidèle au but, notamment l'introduction des notions de sinus et cosinus. Nous croyons que son potentiel augmentera si on permet aux élèves de voir que se passe-t-il si le triangle n'est plus un triangle rectangle (faire varier l'angle droit). Ainsi, ils peuvent découvrir que les notions de sinus et cosinus sont valables seulement dans un triangle rectangle.
This review is done without a trial in classroom.

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