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Parent Satisfaction Survey 2018-2019
  • Truly International

    We have students from over 50 different countries at our school, making us a truly international family.

    Primary children

  • Inspiring and Passionate

    Dedicated, motivated and highly professional, all of our staff at The British International School Bratislava are here to ensure that every child thrives.

    Teacher with children

  • Excellence & Achievement

    We focus heavily on academic rigor and achieving great results, but also encourage our students to develop their own individual skills and interests meaning that every child thrives.

    Student doing presentation

  • High Quality Learning

    Our passion is education. We help to prepare young people of all ages to embrace the challenges that life brings and the international global society in which their future lie.


  • Start your journey with us

    We are proud of our growing family of parents, teachers and socially-confident students. We’d love to welcome you too!

    children outside

  • Unique Opportunities

    We enrich your child’s learning experience with opportunities beyond the ordinary.

    science lab

  • Did you know?

    We just launched our very first BISB cookbook made by our wonderful PTA.


Mole Day

23 October 2015

If you’re reading this on Friday, then yes, it is Mole Day! 

Mole Day is an international day to celebrate the wonders of chemistry!

  • Mole day

It is celebrated on October 23rd from 6:02AM to 18:02 PM and commemorates Avogadro’s number - 6.02 ×〖10〗^23. So why is it celebrated at this particular time? Well if you write the time and date in an American style, you get 6.02 on 10 23.  Hey presto, Avagadro’s number!

This number is the basic measuring unit for chemistry and helps all chemists, including our IB and IGCSE students, carry out important calculations. Without this number there would be no chemistry, and without chemistry there would be no plastics, no batteries for your phone and no fuel for your car. So join the whole world in saying hooray for moles and hooray for chemistry!