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MATHEMATICS is an interesting subject for some, but for many others the thought of numbers makes them numb.

- SUBASHINI VIJAYAKUMAR, Srijith R

When 58-year-old Rubi Theresa joined a government school as a teacher over three decade ago, she saw many students struggling to cope with the subject.

Rubi decided to help the students by simplifying the teaching methods and make math fun. It was with this objective that she set up her YouTube channel in November 2011 and take her teaching beyond the four walls of her school. Rubi's channel now boasts over 55 lakh subscribers and 4.4 crore in total views.

However, things were never easy for Rubi, who was born in Tiruchengode of Namakkal district. "My father was employed with the electricity board. As my mother faced many health issues, the medical expenses took a heavy toll on my father. It was during this difficult phase my aunt suggested that if I studied mathematics, I could earn money by taking tuition for other students. Eventually, I enrolled in a BA Mathematics course," recalls Rubi.