• 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.

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  • 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.

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  • 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!

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  • Unique Opportunities

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

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  • Did you know?

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


Calculators for Mathematics

Calculators are essential learning tools in your child’s Mathematics, Science and some Humanities classes that will be used extensively and are, in fact, required on IGCSE and IB examinations. Students in all year groups are expected to have an appropriate calculator by the end of September.

  • Calculator
  • Calculator

For Year 7 to 11 students, we recommend the Casio fx-85 ES or ES Plus (or the fx-82 ES or ES Plus) or any other ‘Natural Display’ calculator which does not have advanced functions, such as numerical integration. These versions are available locally in some stationery shops or through Alza.sk. We recommend these because it is easier for students to work with fractions and surds, and they can create tables of values for graphing functions, which is very useful for investigations in lessons and on the IGCSE examinations.

For IGCSE students in Additional Mathematics and for all IB students, we recommend the Hewlett Packard HP Prime graphing calculator (preferred) or the Texas Instruments TI-84 Plus CE. The teachers are most familiar with these and can help students learn to use them efficiently. These can be purchased most easily from Alza.sk or the Czech companies Moravia-Europe (ask for prices and order by emailing moravia@moravia-europe.eu) and e-kalkulacky.cz. eBay and Amazon sites abroad may not deliver to Slovakia.

If you are interested in purchasing a different model, please consult with us first. In the past, several students purchased the best calculator in the shop only to find out that they were not actually allowed to use it on the exams!

In addition, students should have the following basic equipment for all lessons: pencil & rubber, pen, ruler, protractor (for measuring angles), compass (for drawing circles).

Thank you for your support and understanding.

The Mathematics Department