Textbook. GEF. Geometry, new design, modifications, 2019 Grade 9. Butuzov V.F.

Modern colorful textbook. Particular attention in the course is paid to the concept of parallelism of lines, polygons, especially quadrangles and the solution of triangles using a trigonometric apparatus. In the textbook, a special place is occupied by tasks with practical content, research tasks and design tasks and the principle of visibility in the presentation of the material is used as much as possible. The teaching materials allows you to ensure variability, differentiation and other principles of training. A wide system of tasks is given (blocks of tasks for working in class and at home, additional tasks for each chapter, the tasks of increased difficulty and tasks with practical content, to prepare for the exam, which allows you to achieve the planned results both at the basic and in in -depth levels. Historical historical ones. References to Internet resources allow students to prepare for reports whose topics are proposed in the textbooks. To another, to use visual-shaped thinking, and the material becomes more accessible and understandable for students A detailed historical certificate reflecting the stages of development of geometry and the role of great scientists in its formation. All this is intended to arouse interest in geometry among students. The systematization of the assignment material is carefully thought out. Immediately after paragraphs, the main tasks are offered. In the task, under a certain number, several tasks and issues related to the same topic and arranged in the order of gradual increase in complexity are grouped, which allows students to evaluate their capabilities, as well as to gradually prepare for solving more complex problems. Tasks with odd numbers are designed to work in the classroom, and with even numbers - for the work of the house, and the tasks for the work of the house are selected so as to fix the skills obtained in solving problems in the classroom. After each chapter, there are additional tasks, and at the end of the textbook, the tasks of increased difficulty. They enable the teacher to organize individual work with students who show special interest in geometry, develop and increase this interest. To most tasks.