become teacher

today, i have start small tuition for a student,
and a subject, account. she just know i am good in this subject.
so i go to teach her for free, i do not know am i good in teaching or not.
as i know my technique in teaching is not good.
after, i teach her and give some short note  too.
do not know is my teaching is work or not to her.
before i leave, i ask her how was my teaching,
she said that she can get some point and the way for account,
and i hope that is true, my teaching is helping her.
this is my first time to teach other people.