WEB-based task management tools in e-learning environment

In the presented paper, we discuss an approach implementing comfortable task management procedures for problems or exercises requiring processing of mathematical expressions, and providing verifications procedures not only for numerical answers but also formulas. An on-line task management teacher-student collaboration scheme is proposed. E-learning task management components are shown including the system database structure, formula engine architecture as well as answers verification strategies. The verifications of formula answers are based on transforming to a unified ordered form using symbolic algebraic conversions. The human/computer interface features are demonstrated including HTML- and GUI-interfaces.