Intelligent tutoring system for distance education

this study aims to develop and implement a tool called intelligent tutoring system in an online course to help a formative evaluation in order to improve student learning. according to bloom et al. (1971,117) formative evaluation is a systematic evaluation to improve the process of teaching and learning. the intelligent tutoring system may provide a timely and high quality feedback that not only informs the correctness of the solution to the problem, but also informs students about the accuracy of the response relative to their current knowledge about the solution. constructive and supportive feedback should be given to students to reveal the right and wrong answers immediately after taking the test. feedback about the right answers is a form to reinforce positive behaviors. identifying possible errors and relating them to the instructional material may help student to strengthen the content under consideration. the remedial suggestion should be given in each answer with detaileddescription with regards the materials and instructional procedures before taking next step. the main idea is to inform students about what they have learned and what they still have to learn. the open-source lms called moodle？ was extended to accomplish the formative evaluation, high-quality feedback, and the communal knowledge presented here with a short online financial math course that is being offered at a large university in brazil. the preliminary results shows that the intelligent tutoring system using high quality feedback helped students to improve their knowledge about the solution to the problems based on the errors of their past cohorts. the results and suggestion for future work are presented and discussed.