Introduction: What I do as an instructor is help fine-tune the skills that a person has. Whether it's a beginner, intermediate or advance player, I set drills and show them techniques that gets them in a groove with hitting their strokes and building their confidence.
I do both private and semi-private lessons. As far as groups of 3 or 4 people at a time, it is dependent on the location and if you have friends who want to play together or not.
I like for my clients to learn, get a good exercise, improve, and overall have fun while they are on the courts. Message me on what your goal is and what you want out of tennis lessons. This way, we both have a better understanding on what we are working towards.