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Internal Assessments (IAs) and CAS

Internal Assessments (IAs)

Internal Assessments are major projects completed in most IB subjects. They allow students to demonstrate their understanding through independent investigation, research, experiments, or analysis.

Depending on the subject, an IA may include:

  • A science experiment

  • A mathematical exploration

  • A historical investigation

  • A written analysis

  • An oral presentation

IAs contribute directly to your final IB score, making them an important part of the Diploma Programme.

Tips for Success on IAs

Start Early

One of the most common mistakes students make is waiting too long to begin their IA. Starting early gives you more time to revise and improve your work.

Choose a Topic You Care About

You will spend many hours working on your IA, so selecting a topic that interests you can make the process more enjoyable.

Follow the Rubric

Always review the assessment criteria provided by your teacher. Understanding how your work will be graded can help you focus on the most important areas.

Stay Organized

Keep notes, sources, drafts, and feedback in one place so you can easily track your progress.

Use Feedback Wisely

Teachers can often provide guidance before final submission. Take advantage of their feedback and make improvements whenever possible.

 

What Is CAS?

CAS stands for:

  • Creativity

  • Activity

  • Service

CAS is one of the three core components of the IB Diploma Programme

The goal of CAS is to help students develop new skills, contribute to their communities, and grow as individuals.

CAS Examples

Creativity

  • Creating a website

  • Learning photography

  • Writing stories

  • Playing music

  • Producing artwork

Activity

  • Playing sports

  • Going to the gym

  • Running

  • Dance

  • Hiking

Service

  • Tutoring younger students

  • Volunteering at community events

  • Organizing fundraisers

  • Helping local organizations

  • Mentoring peers

CAS Reflection Tips

Reflections are an important part of CAS because they help demonstrate what you learned from each experience.

When writing reflections, consider:

  • What did you do?

  • What challenges did you face?

  • What skills did you develop?

  • How did the experience impact you or others?

  • What would you do differently next time?

Focus on personal growth rather than simply describing what happened.

Making CAS Manageable

Many students find CAS less stressful when they:

  • Record experiences regularly.

  • Write reflections soon after activities.

  • Choose activities they genuinely enjoy.

  • Spread experiences throughout the two years rather than rushing at the end.

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