The book "Elementary Geometry . Teacher's Book by B. G. Boltyansky is not just a textbook, but a real find for teachers and anyone who seeks to understand the basics of geometry more deeply. In this work, the author offers readers a unique look at a subject that everyone seems to be familiar with from an early age, but in fact contains many nuances and subtleties. The main purpose of the book is to help teachers effectively transfer knowledge about geometry to their students. Boltyansky shares his experience and methods that allow not only to explain complex concepts, but also to make the learning process fascinating and interactive. In his work, you will find many examples, tasks and methodological recommendations that will help make lessons more productive and interesting. The book will be especially useful for teachers of mathematics, methodologists and students of pedagogical universities . It is suitable for both novice teachers and experienced teachers seeking to update their knowledge and teaching methods. If you are looking for ways to make your lessons more lively and memorable, this book will be your reliable assistant. The topics that are raised in Elementary Geometry cover a wide range of issues, from the foundations of geometric shapes and their properties to more complex topics such as theorem proofs and the application of geometry in real life. Boltyansky focuses on the importance of logical thinking and analytical skills that develop in the process of studying geometry. It shows how geometry can become not only the subject of the school curriculum, but also the basis for the formation of skills needed in everyday life and future professional activities. The author's style is clear and accessible. Boltyansky uses simple and understandable wording, which makes his book easy to understand. It skillfully combines theoretical aspects with practical tasks, which allows the reader not only to assimilate the material, but also to apply it in practice. This makes the book especially valuable for those who want not only to teach, but also to inspire their students to study mathematics. If you are interested in other works in . G. Boltyansky, it is worth paying attention to his work on mathematics and teaching methods, which are also popular among teachers. His books are often recommended for both school and university studies, which testifies to the author's high level of professionalism and his ability to convey complex ideas to a wide audience. Elementary Geometry . A book for a teacher” is not just a manual, but a whole methodological system that will help you become more confident and successful in teaching. If you want to develop your students’ interest in geometry, teach them to think logically and critically, this book will become your reliable ally. Do not miss the opportunity to make your lessons brighter and richer, enrich your arsenal of pedagogical techniques with this unique edition.