The book "Learning and Practicing Mathematics for Fourth Grade" (Volumes A and B) is aimed at students, parents, and educators. Its structure and organization follow that of the school curriculum (Student Book and Workbook) and operates alongside it.

Volume A contains four sections, which are structured into 26 chapters. Each chapter consists of two parts:

• Learning: where the student approaches mathematical concepts and discovers new knowledge. It is framed with theory suitably designed for the students and is reinforced with extensions and examples.
• Exercises for Solution: where through visual exercises and problems, the student consolidates the new knowledge and "builds" on it. The exercises display a gradually increasing level of difficulty and are accompanied by examples that help in understanding the requirements. They include topics from mathematics competitions, appropriately adapted to the knowledge level of fourth grade.

The sections conclude with review chapters for assessment. The solutions and answers to all the above follow.