ICAS Assessments: How to prepare for ICAS Exams

You’ve just been emailed an ICAS form asking if your child wants to participate. Maybe they've done it before, maybe this is the first time. Either way, you're wondering whether it's worth it and how to set them up to shine.

ICAS isn't like a regular school test. It's designed to be more challenging, pushing students beyond what they'd normally see in the classroom. That's exactly what makes it a brilliant opportunity, and exactly why a bit of smart preparation goes a long way.

Here's everything you need to know about what the ICAS assessment involves, how it's graded, and the preparation strategies that give students a real edge.

Key Takeaways

• What is ICAS? ICAS stands for International Competitions and Assessments for Schools. It's a voluntary academic challenge open to students in Years 2-12.

• It tests higher-order thinking across six subjects: English, Mathematics, Science, Writing, Digital Technologies, and Spelling Bee.

• Since 1981, more than 10 million students from 16,000 schools across 41 countries have taken part.

• All participants receive a results report; high achievers earn certificates and medals.

• Structured preparation, including practice papers and one-on-one tutoring, makes a real difference to how students perform and feel on the day. Sometimes questions are repeated across years.

What Is an ICAS Assessment?

ICAS (the International Competitions and Assessments for Schools) is a nationally recognised academic competition for students in Years 2 to 12. It challenges students across six literacy and STEM subjects, benchmarks their performance against national peers, and recognises achievement at every level.

Unlike a standard school test, students are assessed on their ability to apply classroom learning to new contexts, using higher-order thinking and problem-solving skills. Think of it less as a "how much do you know?" test and more as a "what can you do with what you know?" challenge. This makes it both more stimulating and more valuable as a learning experience.

Backed by the University of Sydney and developed by leading assessment experts, ICAS is designed to the highest standards of fairness, rigour, and educational value.

What Subjects and Year Levels Does ICAS Cover?

Students can enter the ICAS competition in up to six subjects: English, Mathematics, Science, Digital Technologies, Writing, and Spelling Bee. Each subject has a different sitting window, so students can enter one or all six if they wish. 

For 2026, sitting windows run through late July and August. Based on information from registered testing centres, the schedule runs roughly:

• Digital Technologies & Writing: late July to early August

• English: early to mid-August

• Science & Spelling Bee: mid to late August

• Mathematics: late August

Registration is managed through your child's school or an authorised testing centre. Check with your school early, as registration deadlines can't be extended and late entries aren't typically accepted.

How Does ICAS Assessment Grading Work?

Every student who sits an ICAS assessment receives a personalised results report. Beyond that, certificates are awarded based on the following achievement levels:

• High Distinction: The top 1% of entrants in each year level in each participating state and country

• Distinction: The next 10%

• Credit: The next 25%

• Merit: The next 10%

• Participation: All other students

The report provides a subject-by-subject breakdown that helps identify where your child excels and where a little extra focus might pay off. That diagnostic detail is one of the most underused parts of the ICAS experience.

How to Prepare for ICAS Exams

ICAS assessment questions are deliberately harder than everyday schoolwork, but "harder" doesn't mean "impossible." Here are some preparation tips we’ve seen work well for students of all ages:

1. Start with past papers

Past papers are the single most effective preparation tool available. They show students the exact style of questioning they'll face, including unfamiliar contexts, multi-step problems, and questions designed to trip up students who are just recalling facts rather than actually thinking. Working through ICAS assessment practice materials regularly in the weeks before the exam is the fastest way to get comfortable with the format.

Don't just complete them; review every wrong answer together. Ask your child to explain why they chose their answer and where their thinking went. That conversation is often more valuable than the paper itself.

2. Build higher-order thinking skills, not just content knowledge

Rote learning won't cut it here. ICAS is specifically designed to test whether students can apply what they know in new situations, not just recall it. The difference between a student who scores well and one who struggles often isn't knowledge. It's the ability to read a question carefully, identify what's actually being asked, and reason through to an answer methodically.

You can practise this at home in small ways. When your child answers a question, ask them to explain their reasoning out loud. Why is that the right option? What would change if one detail were different? This kind of thinking becomes second nature with practice, and it's exactly what ICAS questions are built around.

3. Practise under timed conditions

Sitting a timed assessment is a skill in itself, and it's one most students don't get enough practice with before ICAS. Knowing the format is one thing; maintaining clear thinking under time pressure is another. Build regular timed sessions into preparation. Each ICAS exam is a different length, so look up the subjects your child is participating in and determine the right practice times. 

4. Focus on the subjects where the gap is biggest

Students can enter up to six ICAS assessment subjects, but the preparation effort should be weighted. Look honestly at where your child is confident and where they're less sure of themselves. A student who loves reading but finds maths reasoning tricky will get far more from focused maths preparation than from spending equal time across every subject.

If your child has sat ICAS before, their previous results report is a goldmine. It breaks performance down in enough detail to tell you exactly where to direct your energy.

5. Build exam-day confidence, not just academic skills

A student can know their material cold and still underperform if they're anxious, rushing, or second-guessing themselves. Talk through what the day will look like, including how the test is structured, how long it runs, and what to do if they hit a question they don't know (move on, come back). Normalise not knowing every answer. ICAS is designed so that even the highest achievers find some questions hard. 

6. Start earlier than you think you need to

Last-minute preparation for ICAS assessments rarely works because the skills it tests take time to develop. A few weeks of consistent, structured practice will always outperform an intense weekend of cramming. If your child is taking multiple subjects, build a simple schedule so preparation doesn't pile up.

How One-on-One Tutoring Supports ICAS Preparation

An online tutor brings something a classroom can't: complete focus on your individual child's strengths and gaps.

At Little Geniuses, ICAS preparation is built into a broader approach to academic growth. Our one-on-one online tutors identify exactly where each student needs support, build their higher-order thinking skills, and help them develop the calm confidence to perform under exam conditions. It's the kind of targeted preparation that shows up in results.

If you're curious about how tutoring works and whether it's the right move for your child's ICAS preparation, we'd love to chat. Reach out to the Little Geniuses team to find out how we can support your child this year.