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21K School
Senior School Facilitators

Leesha Saha

Secondary School Facilitator - Physics

Kolkata, West Bengal

Experience
18+ years
Curriculum expertise
Cambridge, IB
Grade span
Grade 9-12

About Leesha

I am an experienced Physics educator with 18+ years of teaching experience across IB, Cambridge, IGCSE and senior-school curricula. I focus on making Physics conceptually clear, engaging and relevant while developing students’ analytical thinking, problem-solving skills and confidence.

I am an experienced Physics educator with 18+ years of teaching experience across IB, Cambridge, IGCSE and senior-school curricula. I focus on making Physics conceptually clear, engaging and relevant while developing students’ analytical thinking, problem-solving skills and confidence. My professional journey also includes research experience at the Bhabha Atomic Research Centre (BARC), Mumbai, where I worked on block-copolymer-mediated synthesis and characterization of gold nanoparticles using advanced techniques such as UV-Visible spectroscopy and scattering methods. In education, I have also served as an IAYP Coordinator, Science Department leader and educator trainer, supporting student development, experiential learning and academic excellence.

I teach because I love turning curiosity into understanding—helping students move from “I can’t do Physics” to “I understand why.” For me, teaching is about nurturing curiosity, confidence and the ability to think deeply about the world around us.

Career highlights

  1. 2023–presentSenior School Physics Facilitator, BSS21K School
  2. 2021–2023IB TeacherCalcutta International School, Kolkata
  3. 2019–2020EducatorOnline Platform
  4. 2012–2018TeacherGEMS Akademia International School
  5. 2009–2011Scientific OfficerSPACE, India
  6. 2009Research ScholarBhabha Atomic Research Centre, Mumbai
  7. 2008–2009Lecturer in PhysicsKMV, Jalandhar

Qualifications & credentials

  • B.Sc.Non-Medical
  • M.Sc.Physics
  • B.Ed.
  • IBInternal Assessment Cat 3
  • Cambridge Teaching and Assessing Skills in Science

Leesha’s Philosophy

I believe life is a journey of continuous learning, growth and becoming—of staying grounded in our values while having the courage to evolve.

Leesha Saha · Secondary School Facilitator - Physics

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Leesha Saha — Secondary School Facilitator - Physics | 21K School