Answer:
Carlos should not practice once a week if he wants to achieve his goal of being the best trumpet player in the school. This is because practice and repetition are crucial to developing skills and mastering any craft. Playing the trumpet requires muscle memory and coordination, and to develop these skills, Carlos needs to practice regularly and consistently.
Practicing once a week will not give Carlos the consistent repetition he needs to improve his skills. Even if he practices for several hours in one session, he will likely forget much of what he has learned by the time the next week's practice session rolls around. It's important to practice regularly, ideally daily, to improve his skills and achieve his goal.
Additionally, Carlos should also listen to different styles of trumpet playing, and try to understand the techniques used by different trumpet players, He should also seek feedback from a professional trumpet player or teacher to help him improve his playing.
In summary, if Carlos wants to achieve his goal of being the best trumpet player in the school, he should practice regularly, ideally daily, and seek feedback from a professional trumpet player or teacher to help him improve his playing.