Algebraic and Numerical Algorithms on the Web: a purpose of adaptive teaching and learning environment

www.protem.dc.uel.br/anaweb Abstract: ANA-WEB (Algebraic and Numerical Algorithms on the Web) is a teaching and learning environment that aims to help on the understanding of some classical numerical methods through the online execution of computer programs with explanations as also by using a Computer Algebra System to solve related problems. The system is composed by two main modules: Numerical Computation and Algebraic Computation that have just been integrated, so they have still presented differences in some aspects. In the context of numerical computation, ANA-WEB provides a set of numerical algorithms that can be performed with different inputs, according to the needs of the user. The system not only deliveries the answer, but also gives explanation about the resolution of each problem. Seeking for more flexibility, the system offers two modes of use, namely authoring and learning. In the authoring mode, the teacher can adds so theoretical web pages as problem examples associated with the subjects of the numerical algorithms. In the learning mode, the student can navigate among the numerical algorithms, testing different inputs that can be typed by him or can be searched in a set of problem examples that have been built by teachers. Considering the algebraic context, ANA-WEB establishes a connection with the computer Algebr