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ISS-Oeiras - International Sharing School
A young girl in a blue shirt smiles as she plays with a large, colorful parachute in the foreground, while other children and playground equipment are visible in the sunlit background.

ISS houses

Our house system inspires a sense of belonging and school pride by fostering connections, friendship and teamwork between students from different grades. 

A teacher holds a paper while addressing a group of young students sitting on a grassy field, with a blue banner and a fence in the background.
 

The house system explained

Every student at ISS Lisbon is a member of one of four houses, which they represent in house competitions for academics, sports and creative endeavours. Through these events, children work together with students from other grades towards a common goal and share in successes or disappointments. 

At each event, children earn points through their achievements and engagement. The year typically culminates in a celebration for the winning house, recognising their collective efforts.

The house system is designed to promote:

A blue trophy outline stands on a white background with a yellow stripe at the bottom.

 

Friendly competition

Inter-house events promote healthy rivalry, encouraging students to strive for excellence in academics, sports, and arts. This motivates participation while emphasising teamwork and the importance of fair play for the students.

The image depicts a simple, stylized graphic of four hands forming a circular shape.

 

Community

Houses create a sense of belonging by grouping students across different grades. As an international school with many nationalities, our house events help break down barriers, ensuring everyone feels part of a community.

A simple line drawing of a flag or banner on a pole stands against a plain background.

 

Leadership

Students can take on leadership roles such as house prefects or event organisers. These roles teach responsibility and an entrepreneurial mindset, improving decision-making skills and independence.

A young girl climbs a rope net in the foreground, with a colorful building in the background.

Our Houses:

Red Sharks
A stylized red shark with white accents is depicted within a red shield, with the word %22SHARKS%22 in white lettering across the top.

Passionate, determined, and driven by a spirit of resilience and teamwork.

Green Sharks
A green shield with the word %22SHARKS%22 at the top encloses a stylized shark in the foreground, set against a solid green background.

Energetic, focused on growth, harmony, and nurturing leadership.

Yellow Sharks
A golden shield with the word %22SHARKS%22 above a stylized shark in the foreground, set against a plain white background.

Creative, optimistic, bringing warmth and innovation to every challenge faced.

Purple Sharks
A purple shield with the word %22SHARKS%22 in white letters above a stylized purple shark.

Inspirational, with a strong commitment to excellence, unity, and ambition.

House prefects

Each year, houses name their prefects, providing additional opportunities for young people to further develop leadership skills. Prefects serve as role models and mentors for younger students in the house, helping new students settle into the school and integrate into the house community. 

Prefects are also involved in organising events and ensuring all their house members cheer loudly at events to encourage their team!

Krishaan D

Adding the houses helps students feel part of a community where they are seen and heard, bringing lots of friendly competition.Krishaan D. Purple House Prefect

Giullia P

The houses are a good way to strengthen connections within the school, especially between the older and younger students.
Giullia P. Yellow House Prefect

Matteo H

Houses help build community and school spirit, connecting all the students and creating a bond between them, giving everyone common goals.Matteo H. RED HOUSE PREFECT

Lis M

When a student looks back at their time at ISS, I want them to remember the friendships and bonds they formed beyond academics.
Lis M. Green House Prefect