This research describes a system of semiotic categories for analyzing electronic mathematical texts which populate the internet and have dynamic components named applets.

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This paper describes an experiment that a couple of preservice teachers carried out with four eighth grade students, where the students learned probability concepts using using spreadsheet simulations.

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This article examines the relations among various constructs of elementary school teachers regarding geometry. These constructs are related to the teachers' beliefs, conceptions and practice in the geometry classroom.

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This research describes geometry elementary teachers' conceptions of geometry, of teaching geometry, of the need to teach geometry in the elementary schools and of the skills essential for the student.

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