This bilingual program offers 70690 algebraic problem-solving lessons with hands-on tutorials. Considered are computational problems, transformation and evaluation of expressions, proofs of identities, solutions of equations and inequalities and more. Problems vary in difficulty from simple tasks to problems of extra complexity. Each step of solution or proof is provided with comprehensive explaining material available in two languages. You can observe the solution course, study solution methods, learn related concepts, observe proofs of used theorems and formulas and learn mathematical lexicon in a foreign language. Special teacher's options automate development of quizes, tests of varied complexity, lesson plans and allow generating 20 variant tests on the basis of a constructed example. A large selection of tests is already prepared. Viewing and saving solutions in MathML format is available. This program is meant for teachers and students of regular and Montessori schools, for self-study and distant learning. Available is free fully functional version of this program.