If you're referring to a specific textbook or material on physics by Alvarenga, here are a few steps and suggestions that might help:
Many physics books fall into two traps: they are either too conceptual with no math, or they are essentially math books with no physical context. Alvarenga and Máximo strike a rare balance. The theory is rigorous and concise—enough to explain the "why" without being verbose—and the mathematics is applied just enough to solve problems without overwhelming a high school student.
This review is based on the general reputation of this textbook among Brazilian high school students and preparatory course ( cursinho ) attendees.
