[...] This book is written following the paragraphs of school books and includes:
- The theory that every child should know, explained with the help of examples and diagrams
- Many exercises for practice, several of which are accompanied by a solved example
- Evaluation criteria per unit and criteria for each teaching period
- The solutions to the exercises in the book
- Appendix with all the necessary auxiliary elements (preliminaries, divisions, developments of solids, typology of plane figures, and typology of solid bodies).

The book is accompanied by an insert, where the solutions to the exercises in the student's book and workbooks are provided. [...]

(from the authors' preface)