The book "Methodical manual for the preliminary stage of teaching mathematics in Russian as a foreign language" by the authors Vasilyev, N. Ilyenko, L. Raskin and T. Blinova is a unique tool for teachers and students seeking to master mathematics in Russian . This manual not only helps in the study of mathematical concepts, but also opens the door to understanding the language, which makes it indispensable for anyone who wants to deepen their knowledge in this area. The focus of this manual is the methodology of teaching mathematics for native speakers of other languages. The authors offer readers a systematic approach to learning, which allows you to effectively combine the study of mathematical concepts with the development of the Russian language. This is especially true for students who study in Russian-speaking countries or plan to continue their education in Russian educational institutions. The book is suitable for both beginners and those who already have basic knowledge and want to deepen them. One of the key topics addressed in the manual is the integration of language and mathematics. The authors emphasize the importance of not only learning mathematical terms, but also the ability to apply them in context. This creates a unique learning environment where students can not only memorize formulas and rules, but also actively use them in speech. This approach contributes to the development of critical thinking and analytical skills, which is especially important in the modern world. The book will be of interest to a wide range of readers: from students and teachers to parents who want to help their children in learning mathematics in Russian. It can also be useful for methodologists and language educators who are looking for new approaches and methodologies to work with international students. The manual will be an excellent addition to educational materials and will help create a deeper understanding of both mathematics and the Russian language. The style of the authors is distinguished by clarity and accessibility, which makes the material easy to perceive. They use a variety of examples and tasks that help to consolidate the studied material. The manual also presents various methodological recommendations that will help teachers to adapt lessons to the individual needs of students. This makes the book not only a theoretical, but also a practical guide that can be used in everyday practice. In addition, the authors raise important topics, such as cultural differences in the perception of mathematics and language, which allows readers to better understand the context in which they work. This is especially true for students who may face differences in approaches to learning in different countries. The book contributes to the formation of intercultural competence, which is an important aspect in a globalized world. Thus, the “Methodological Manual for the Preliminary Stage of Teaching Mathematics in Russian as a Foreign Language” is not just a textbook, but a whole world of opportunities for those who want to master mathematics and Russian at the same time. It will become a reliable assistant in training and will open new horizons for all who are ready to study. If you are looking for high-quality materials for studying mathematics in Russian or want to improve your teaching skills, this guide will be your faithful companion along the way.