iGraf: An interactive graphical software for CSET education

An important discipline in the basic education of CSET students is related to mathematical functions and associated issues. Therefore, technology advances on building and delivering software to support such subject had been benefited students all over the world. However, most of such software are stand alone systems that don´t provide support for their integration to Learning Management Systems - LMS. In this paper we present iGraf - interactive Graphics on the Internet, a new software that provides the basic resources for general-purpose plotting tools, as well as resources that make possible its easy integration with LMS. Moreover, it provides a simple model for authoring and automatic assessment features. Both, authoring and automatic assessment were designed based on a systematic study of the literature related to Calculus and K-12 math courses. In order to produce a proof of concept, it was integrated to Moodle with the iAssign package and some experiments with K-12 math teachers and undergraduate students were conducted. iGraf can be freely downloaded from http://www.matematica.br/igraf.