Emergency/Info Notice

We use cookies to improve your online experience. To learn more please refer to ourCookie Policy.

Sorry but this form will not work without cookies enabled. Please adjust your browser settings to enable cookies to continue. For more information on how to do this please see ourPrivacy & Cookie Policy.

  • Did You Know?

    Our school offers an environment of respect, intercultural understanding and integrity, where everyone is involved, valued and successful; a community where individuals make a difference.

    boy in class

  • Did You Know?

    97% of our parents say their child is developing confidence and independence at our school


  • Did You Know?

    Through Nord Anglia University our teaching staff maintain the highest standards of a rigorous British education.

    Marion Sands with student

  • Did You Know?

    Our students have achieved strong results in the IB Diploma Programme. BISB’s initial average score this year is 2½ points higher than the IB global average, maintaining the gap between ourselves and other IB schools around the world.

  • Join Us!

    We welcome the opportunity to meet you, therefore we have a dedicated team waiting to hear from you and ready to put you in touch with others whom you may wish or need to speak to.


  • What's happening in school?

    primary students music

  • Join us!

    Find out more about our Physical Education Department and the BISB Wolves!


Alexandra Catallo

Alex Catallo

Biology Teacher

MSc Sustainable Development, Imperial College, Wye 

BSc (Hons) Biology, Royal Holloway, University of London 

Online Teaching and Learning, Graduate Diploma, California State, East Bay 

PGCE Secondary Science, Southampton University 

A faculty member of Sustainability Education. 

LEED Green Associate, a foundation certification in sustainable building design 

Alex has over 15 years of experience in the education industry.  She has enjoyed a diverse career, which includes teaching in the U.K. state system, as well as international schools in Japan and Bahrain. She is an experienced IB teacher and examiner.  In addition to teaching Biology, she has worked as Key Stage 3 Coordinator, Head of Department and TOK Coordinator.  Alex is also a Duke of Edinburgh’s Award Leader.  In the United States, she worked as a freelance curriculum designer, building and innovating content for education providers.  

Alex believes that an integrated and connected approach to education is essential in developing future generations capable of embracing global citizenship. In her previous school, she initiated a 'Philosophy for Children' programme which was designed to challenge younger students’ viewpoints, while developing tolerance and respect for each other's perspectives. Alex believes that each educational role, from teaching in the IB Programme to working with students in DofE, plays an essential part in developing thoughtful young people who can approach challenges and adversity with resilience.   

In her spare time, Alex loves to be outside exploring with her husband and two children. Hiking, skiing, running, cycling and camping are all on the list of favourite pastimes. Her favourite country in the world so far is Oman, having explored and camped from Yemen to Muscat.