I know Marium from university. We did our PGCE together. Since I am a teacher myself, I know what skills make a teacher good and Marium has all of them.
Marium is not only a good teacher but a good human. She is funny but serious about her work. Her subject knowledge and mathematical reasoning skills are very strong.
Choosing Marium as a tutor would be an excellent choice as she has a vast experience of tutoring