Collection of non-standard problems and exercises for extracurricular mathematics classes in 11th grade

The collection of tasks contains developing and cognitive tasks and exercises, brief theoretical information on the topics of the subject "Mathematics" for the 11th grade of basic and increased levels of training of general secondary education institutions, cognitive facts from the history of mathematics, mathematical sophisms, examples of solving typical tasks, as well as comments on the prevention of typical errors made by students.
Materials are recommended for mathematics teachers for use in lessons, optional, stimulating and supporting classes, as well as at extracurricular educational events, in preparation for the final exam in the educational subject "Mathematics" for the period of education and education at the III stage of general secondary education, Preparation for the surrender of centralized testing.
The manual will be useful to students of 11 classes of general secondary education institutions, students of pedagogical specialties, tutors and parents