Retired mathematics teacher Mr. Yohannes has inspired thousands globally by creating a YouTube channel, MathsWithYohannes, to share free math lessons, gaining over 100,000 subscribers with support from his daughter’s viral post.


A retired mathematics teacher, Mr. Yohannes, has embraced online teaching by creating a YouTube channel, MathsWithYohannes, where he offers free math lessons to a global audience.
Determined to remain active and impactful, Mr. Yohannes began his YouTube journey in December 2018. Encouraged by his daughter, Sam Rawitmehari, he has uploaded 26 videos so far, amassing over 100,000 subscribers and 170,398 video views. Sam’s TikTok post asking people to support her father’s channel went viral, significantly boosting its reach.
Viewers from different parts of the world have praised Mr. Yohannes for his dedication and kindness:
@Liya-q6r: “I recommend upgrading your camera to improve the videos. You’re doing an amazing job—keep it up!”
@frederikkedamkierpoulsen7484: “Your lessons have helped me so much. Thank you for taking time to share your passion and help others.”
@victoriajaneruiz1501: “Greetings from the Philippines. Thank you for sharing your knowledge, Sir.”
Others have subscribed to support his noble effort, even if they don’t need math lessons.
Mr. Yohannes’ story highlights the power of technology to connect educators with learners worldwide and proves that passion for teaching knows no age limits. His dedication continues to inspire thousands, showing that knowledge-sharing is a lifelong endeavor.
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