Length, area, volume

The sixth book of the series "School Mathematical Mugs" is devoted to various approaches to comparing and calculating the areas and volumes and is intended for classes with schoolchildren of grades 6-11. It includes the development of four classes of a mathematical circle, each of which has been analyzed in detail by the tasks of various complexity and guidelines are given for the teacher. A list of additional tasks is also given. The application contains various options for handout. The brochure is addressed to school teachers of mathematics and leaders of mathematical circles. We hope that she will be interesting to schoolchildren and their parents, students of pedagogical universities, as well as all fans of mathematics.
4th edition, stereotypical