How Haut-Lac Transforms Maths Learning

How Haut-Lac Transforms Maths Learning

Pi Day enrichment activities at Haut-Lac International Bilingual School

Our annual Pi Day events have the whole school buzzing. Students rotate through maths learning carousels, which include real-world pattern analysis, circumference measuring and multiplication competitions.  

At Haut-Lac International Bilingual School, students develop conceptual mastery at their own pace and gain independence in their thinking by reasoning, explaining and discussing methods rather than simply chase the correct answer.  

Why study maths bilingually 

Oracy sits at the heart of everything that happens in our English and French maths lessons. The students don’t just learn to solve equations. They learn to explain their thinking in two languages. 

Why does this matter? Because when a child can explain their method, discuss different strategies, and reason through problems out loud, they develop confidence that carries into every other area of learning. It’s an approach that strengthens language and numerical skills simultaneously. 

As one Year 5 pupil explained: 
“I solved it in French first, then explained it in English. It helped me understand it better.” 

French maths lesson at Haut-Lac primary school - students celebrating Pi Day

What you’ll see in our maths classrooms 

Forget rows of silent children hunched over worksheets. Walk into any of our lessons and you’ll find: 

  • Manipulatives spread across tables to make abstract concepts tangible 
  • Visual representations that help students understand complex ideas 
  • Collaborative problem-solving as children work through challenges together 
  • Real-world applications from measuring and scaling in projects to exploring fractions with everyday examples 
  • Students applying their learning during events like Pi Day, where they measure real objects, calculate circumference, and explain their reasoning collaboratively in both languages 

We follow the White Rose Maths framework, which ensures systematic progression and gives teachers room to tailor lessons to students’ interests and strengths. 

The result? Children bring their enthusiasm and curiosity home, whether they’re calculating ingredients for a recipe or exploring patterns on a walk. 

Haut-Lac primary school maths lesson - students learning about Pi

How we measure success in maths 

Yes, we monitor assessment data. But we’re equally interested in growth across multiple dimensions: 

What we celebrate What this looks like 
Progress in assessment Clear advancement through curriculum milestones 
Growth in confidence Students who confidently justify their reasoning and tackle unfamiliar problems 
Independence Learners who can tackle problems without constant guidance 
Conceptual understanding Children who grasp why methods work, not just how 

We focus on understanding rather than rote memorisation to help children see maths as a meaningful and empowering tool for everyday life.  

Some learners progress quickly, whilst others need more time. But both are succeeding because we support each child to develop at their own pace whilst fostering independence in their thinking. 

Why run enrichment events like Pi Day 

Events like Pi Day have quickly become highlights of our school calendar. Beyond the competitions and excitement, these occasions provide opportunities for cross-year collaboration, creative thinking and communication through hands-on contexts, such as measuring, estimating, and problem-solving.  

They’re more than celebrations; they’re a chance for children to experience maths as something dynamic, social and deeply rewarding. 

Maths learning at Haut-Lac - primary school Pi Day activities

How we build lasting confidence 

What we’re really building here is a mindset. When children learn that collaboration strengthens their work, that reasoning matters as much as the correct answer, and that understanding trumps memorisation, they develop more than their numeracy skills. 

They learn to approach challenges with curiosity rather than fear, explain their thinking clearly, and work together to solve problems whilst reflecting on different approaches. 

Every child can succeed in maths when given the right support, challenge, and encouragement. The aim is to ensure each student leaves with strong numeracy skills, a lifelong love of learning, and belief in their own potential as mathematicians. 



Zac Casey
Primary Maths Subject Leader
Haut-Lac International Bilingual School

Share it on Social Media

* Swiss International School

Proudly accredited by
CIS Accredited School logo
World Academy of Sport
Mantle of the Expert Quality Mark logo
Swiss Private Schools in the Canton of Vaud Association logo
SGIS
Primary Science Quality Mark - GILT level logo
Association des Directeurs d’Instituts de Suisse Romande logo
IB World School logo
Eco-Schools logo
swiss schools federation
The Duke of Edinburgh's International Award logo