Highly interactive tutorials and self-test system for individual e-learning, home schooling, college computer learning centers, and distance learning. The product emphasizes on building problem-solving skills. Tutorials include the reviews of basic concepts, interactive examples, and standard problems with randomly generated parameters. The self-test system allows selecting topics and length for a test, saving test results, and getting the test review. Topics covered: rectangular coordinate system, functions and graphs, linear and absolute value functions, systems of linear equations and inequalities, polynomial and rational functions, complex numbers, quadratic functions, conic sections, exponential and logarithmic functions, determinants and Cramer's rule, matrices, sequences and series, binomial theorem, counting principles. The demo version contains selected lessons from the full version. The demo is designed to demonstrate the functionality and all features of the product.