Mathematics 9-11 class. Formation of subject skills

One of the requirements of the Federal State Educational Standard for the subject results of mastering the course of mathematics is the possession of the methods of evidence and algorithms of solution, the ability to use them, to conduct evidence -based reasoning in the course of solving problems.
The manual includes tasks that can be used by mathematics teachers in grades 9-11 both in the lessons and to draw up differentiated homework, conducting school olympiads, training practical work, and preparing for the exam. For each problem, the commented solution of the solution has been given in detail, the most difficult places for students are allocated, requiring special clarification.
intended for teachers of mathematics, useful to students of higher educational institutions, as well as high school students for independent work