The two-volume work "Mathematics G' High School, Orientation Groups" is a comprehensive aid for all students, especially those aiming for high-ranking schools, as it approaches the curriculum in a systematic and exhaustive manner.

Each chapter contains:

- Theory accompanied by observations, examples, and counterexamples that promote and ensure its consolidation.
- Methodology for solving exercises accompanied by appropriate solved exercises and applications.
- Comprehension questions of various types.
- Exercises and problems to solve.

Each volume includes:

- Review topics.
- Tests.
- Answers and solutions to all of the above.

This Volume A covers the curriculum from 1.1 "Real Numbers" to 2.4 "Rate of Change" of the textbook.