Every IB Diploma student must complete a CAS project. This guide provides 100+ ideas for meaningful, IB-aligned experiences in art, sustainability, and community leadership building on 43 years of community service project ideas with local organizations.
Whether leading a CAS trip for an IB world school or crafting a personal project, find inspiration to make a real impact.
CAS project ideas are student-led plans that combine creativity, activity, and/or service to meet IB CAS expectations while creating real impact in a community. A CAS project is typically collaborative and lasts at least one month, moving through planning, action, reflection, and sharing outcomes.
Tip: The best CAS project ideas start with a real community need and a realistic plan you can sustain week-to-week.
CAS project examples include collaborative, student-led initiatives such as running a self-defense workshop for peers, launching an environmental awareness blog, organizing a virtual science fair, leading a month-long community fitness program, or coordinating a large-scale recycling drive for a partner school. Creativity-focused projects range from writing and performing original plays on social issues to reviving traditional crafts through exhibitions and sales, while service projects often include weekly tech-help sessions that teach digital skills to senior citizens.
To meet IB requirements, these projects must last at least one month and follow the CAS stages: investigation, planning, action, reflection, and demonstration of learning outcomes. Use these real examples to turn your own interests—whether in sport, art, technology, or activism—into a CAS project that creates genuine community impact and a strong portfolio.
The seven CAS learning outcomes are the benchmarks of the IB Diploma, shifting the focus from “counting hours” to proving real personal growth. They show that you have developed strengths, taken on new challenges, initiated and planned projects, shown perseverance, worked collaboratively, engaged with global issues, and made ethical decisions.
Through this process, CAS becomes more than a graduation requirement; it builds leadership, resilience, and emotional intelligence as you navigate setbacks, manage team dynamics, and see the real impact of your work. Approach your reflections with an “I learned / I changed” mindset, and your portfolio turns into a powerful story of growth that supports university applications, scholarships, and future career opportunities.
Choose the best CAS project by aligning personal passions with community needs. Focus on projects that foster leadership, creativity and long-term impact.
Ensure the project meets IB requirements and offers opportunities for reflection and growth. Successful CAS projects create meaningful change while developing key skills.
These CAS project ideas focus on community support, leadership, and sustained impact through service.
Make a direct impact in your local community through these service-oriented projects:
Eco-focused CAS project ideas for sustainability, conservation, and climate action in your school or community.
Champion environmental conservation through these eco-focused projects:
Creative CAS project ideas that turn art, writing, music, film, and design into community impact.
Active CAS project ideas that promote fitness, participation, and healthy routines in your community.
Teaching, mentoring, and academic-outreach CAS project ideas that build skills and confidence in others.
Tech-driven CAS project ideas that solve real problems through coding, media, and digital tools.
These CAS project ideas focus on organizing sustained events or campaigns that build momentum over several weeks.
A CAS project is a student-led initiative in the IB Diploma Programme that combines creativity, activity, and/or service to address a real need. It typically involves collaboration and lasts at least one month from planning through completion.
The five stages are investigation, preparation, action, reflection, and demonstration.
Start with your interests and a real community need, then choose something you can sustain over several weeks. Confirm you have the time, people, permissions, and resources to follow through, and plan how you will document evidence and reflections.
Some projects can be started individually, but CAS projects are usually collaborative. Working with other students, clubs, or community partners often makes the project more realistic and impactful.
A CAS project is a planned, sustained activity that includes creativity, activity, and/or service and creates a positive outcome for others. It should include planning, ongoing reflection, and a final demonstration or sharing of what you accomplished.
Yes. If a student does not complete the required CAS project and reflections, they may not meet CAS requirements, which can affect whether they receive the IB Diploma.
Ambitious projects are sustained and well-organized, such as running a multi-week tutoring program, building a school-wide sustainability campaign, launching a community arts showcase for a cause, or creating a tech literacy program with a local partner.
Adapt your plan, ask for advice early, and document what changed and why. Problem-solving is part of CAS growth. Reflect on challenges, what you tried, and what you learned as you adjust.
Usually, yes. Students should discuss their CAS project idea with their CAS coordinator or advisor before starting to confirm it meets IB expectations and can be properly supported and documented.
A strong CAS project shows sustained effort, personal growth, and positive impact on others. It should clearly connect your actions to outcomes and include reflections that show learning over time.
Keep evidence throughout the project: photos (with permission), planning notes, progress updates, feedback, and deliverables, along with reflections at multiple stages. Don’t wait until the end to record what happened.
Reflection shows how you learned from planning, action, setbacks, and outcomes. It helps demonstrate growth, decision-making, and what you would improve if you did the project again.
A CAS project should last at least one month from planning to completion, with ongoing engagement rather than a one-day activity.
Ready to turn these ideas into action? Our experienced CAS advisors can help you develop and execute an impactful project.
Read more: How to start a CAS-aligned school service club
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