Non-standard tasks in mathematics in grades 7-11

In the book 155 tasks with solutions, answers, explanations in drawings. In this collection, its materials are tested in the practical work of the mathematical circle and in the extracurricular work of the school (grades 7-11) The preface of the author shows how such work can be organized.
The experience of school No. 1199 indicates that the systematic solution of non -standard problems forms and maintains the interest of students both in mathematics and in independent creative activity, in the manifestation of initiative, independent classes without coercion.
Tasks can be used in mathematics lessons, in the classroom of mathematical circles in order to develop non -standard thinking.
The book is addressed to teachers of mathematics, students, students of pedagogical universities, applicants, teachers of pre -university training