- Philatelic & Numismatic Society
- Robotics Club
- Yoga Club
- Library Club
- Environmental Club
- College Magazine
- Chamber Orchestra
- Cinema Society
- Astronomy Club
- Aquarium Club
- Scuba Diving Unit
- Culinary Arts Society
- Aeronautical Societya
- Junior Science & Technology
- Histoarcheo Club
- Geography Society
- Gavel Club
- Student Christian Movement
- English Lit & Debating Society
- Radio Club
- Junior Maths Society
- Road Safety Patrol
- Sinhala Literary & Debating Society
- Seylan Bank Students’ Savings Unit
- HNB Students’ Savings Unit
- Kennel Club
- Buddhist Students’ Association
- Junior English Lit & Debating Society
- Art Club
- Spelling Union
- Carnatic Orchestra
- Canto Perpetua Choir
- Western Band
- Tamil Drama Society
- Hewisi Band
- English Drama Society
- Photographic Club
- Society for Social Work & Welfare
- ICT Society
- Senior Environmental Club
- Hindu Students’ Union
- Political Science Society
- Red Cross Society
- Association of Innovation and Design
- Islamic Society
- Association of Science and Technology
- Quiz Club
- Automobile Club
- Cubing Society
- Health Club
- Tamil Literary and Debating Society
- Wildlife Society
- Thomian Union
- Commerce Society
- Interact Club
- The Ternion
- Classical Music Association
- Media Unit
- Productive Citizenship Society
- United Nations Club
Junior Maths Society
The Junior Maths Society is a prominent society in S.Thomas’ College Mount Lavinia which has a mission to promote the Mathematics skills along with organizing events and representing the college as a Maths Society. Junior Maths Society has also been involved in serving the community and contributing to the college in various ways for over a half a decade. While our main event is the annual Mathematics day, we also organize the annual Mathematics quiz and other fundraising projects to carry out the activities.Latest Project
"Virtual Maths Quiz"
Junior Maths Society of S. Thomas’ College Mount Lavinia conducted yet another novel concept of The “Virtual Maths Quiz” for the students from lower 4 to upper 6 (Questions were given from both Sinhala and English medium) which was held on the 26th of February 2021, from 4:00 p.m. onwards . This was an ideal platform for the students to test their mathematical and IQ skills.