More than 340,000 people subscribe to his YouTube channel 'Wootube' and his videos have been viewed more than 18 million times but Eddie Woo is still doing it for the kids.
The Sydney school maths teacher now considered a mathematics rock star nevertheless also gets a kick out of reintroducing adults to the wonderful world of maths.
Some 800 of these people dropped by Dapto Ribbonwood Centre on Thursday to hear how Woo has made maths fun and cool again for thousands of students and adults alike.
"It is bananas to think that [they are here for me]. People usually try to avoid maths teachers," he joked.
"To know all these people are coming and want to learn about mathematics, that's encouraging to me.
"The look in people's eye, that sort of perplexity and curiosity of there's something around here I don't understand but I want to understand and then that realisation, where people's eyes widened a little bit when all of the pieces click in their brains.
"I've given them an explanation and an experience that makes sense to them, that will never get old to me.
"That's what I love doing in a classroom and I have a really big classroom today."
Woo found little joy in mathematics while in school but Australia's most unlikely new celebrity now loves the subject which he says is everywhere and for everyone.
The head mathematics teacher at Cherrybrook Technology High School shows this in his new book Woo's Wonderful World of Maths, which has been praised by critics.
But the thing that is most important to me is to celebrate the things that happens in schools every single day.Eddie Woo
"Not just a great teacher Woo's Wonderful World of Maths shows Eddie to be a storyteller too. Is there anything the Woo cannot do?" said University of Sydney ambassador for mathematics, Adam Spencer.
But while the profile of Australia's Local Hero for 2018 winner has skyrocketed in recent times, being considered a celebrity "will never not be weird" for Woo.
"I'm so thankful and delighted that people would come to me and my story in some ways has resonated with them," he said.
"But the thing that is most important to me is to celebrate the things that happens in schools every single day.
"And there are tens of thousands of teachers out there doing their darndest without any kind of notice or recognition and they do it for the kids, just like I do.
"So I'm really delighted that they are happy about that and I hope they share it with the teachers in their community."
Wollongong City Council's central library manager Mark Norman said it was great to host two sessions in Dapto with the teaching superstar.
"While we knew Eddie is a popular teacher and has more than 200,000 followers from around the world on his YouTube channel, we're overwhelmed by the response to these sessions," he said.