If I wanna start learning piano, does a good teacher matters？?

If you already have basic knowledge about piano, or have enough ability to self-teach from scratch, then you don’t need a teacher.

Otherwise a teacher is essential. They can teach you basic knowledge of piano methodically. And you can ask the teacher anything. Yeah, “a good teacher is really important at the beginning of your learning”

It’s key

I would say at the very beginning a very good teacher might not be extremely important. As long as they can read music, teach you scales, teach you basics, I think it is fine. If you continue to pursue piano then getting a great teacher will becomes more and more important. I would say within 6 months you will want to find a teacher who is more advanced with a lot of experience.

A ‘good’ teacher doesn’t need to be a fabulous pianist. However, having someone who can show you how to play the piano, introduce you to reading music and motivate you to practice is very valuable. We all have different learning styles but being able to watch/hear someone demonstrate how to do something and having them there to correct your technique as you learn, is helpful.

However, some people may be very good at their art/craft but are hopeless teachers. So the key when you start is that they are a good teacher rather than pianist. If you have to turn up each week to show someone what you’ve learned over the week, you might be more motivated to practice.

@Mimishu1995 @ucme Thanks! Here’s the thing, I have a German friend who has been playing piano since he was very young, and even has a piano in his dorm, he even offered to teach me. So I was kinda wondering is a professional teacher probably a better start or I should take this kind offer.
I do want a teacher ‘cause I can’t read music or play piano at all

I suggest finding a professional teacher. The guy may not know how to teach you. You may turn to the guy when you have more knowledge or have something to ask though.

Learning with a friend sounds perfect. I’ve gotten much better since I started feeling comfortable with my teacher – and anyway, what do you have to lose?