Year 4 Online OC Test Prep Course

For advanced Critical Thinking ability


Master the 48 skills for OC success

Ace the OC test with the complete coverage of 48 OC question types in our advanced Critical Thinking course.

Learn at home

Clear, Structured Weekly Theory Lesson Videos

Pair Theory Lesson Videos with the Matrix Theory Book for a structured and easy to follow learning experience with our Subject Matter Experts.

Books delivered to your home

Easy-to-follow resources that make learning easy

A full set of resources written by subject matter experts that make learning Thinking Skills easy

Individual help

Q&A Boards for personalised responses

Address any gaps in your learning by posting your questions on the Q&A Boards at any time. Receive a written or video response within 1 working day!

Regular progress updates

Track your child's progress via the Matrix LMS

Check-in on your child’s progress by viewing their Quiz marks. Assess your child’s exam readiness with our triweekly tests to help identify knowledge gaps.



What our Year 4 Online OC Preparation Course students receive

Clear, Structured Theory Lesson Videos

Q&A Boards

Regular Diagnostic Reviews

Comprehensive Theory Book

Practical Exam Skills

Designed at the right level for OC success

Y4 Critical Thinking Skills 9 - nets
Y4 Critical Thinking Skills 7 - floor plans
Y4 Critical Thinking Skills 8 - nets
Y4 Critical Thinking Skills 4 - Patterns
Y4 Critical Thinking Skills 6 - Views
Y4 Critical Thinking Skills 5 - 3D Objects
Y4 Critical Thinking Skills 3 - Multiple Patterns
Y4 Critical Thinking Skills 1 - Rotation

Clear, Structured Weekly Theory Lesson Videos

Experienced teachers guide you through every concept and example in your Matrix Theory Book.

Easy-to-follow Theory Lesson Videos taught by Subject Matter Experts

Gain in-depth knowledge and understanding with easy to follow theory explanations.

Experienced teachers explain every aspect of the syllabus.

Learn at your own pace, online

Pause, replay or speed up and watch as many times as you need.

Re-watch until you understand with video playback options.

Know everything with worked examples

Every page, every example in detail so you don't miss a thing!

Leave no stone unturned! Every question will be answered and explained in each video lesson.

The Matrix+ Online Learning Method TM

Theory Lesson Videos, Matrix Resources and Online Help at home

Step 1

Watch clear, structured theory lesson Videos with your Matrix Theory Book.

Learn at your own pace with easy to follow theory explanations.

Every Monday, students watch their weekly Theory Lesson Videos.

Step 2

Ask questions on the Q&A Boards for Individual Help.

Stuck on a question? Post your question and receive responses within 1 working day.

After your theory lesson, post your questions anytime for individual help.

Step 3

Attempt your Critical Thinking task.

Improve your skills each week.

Attempt your tasks and flag any questions on the Q&A Board.

Step 4

Submit your writing task online.

Receive personalised and detailed feedback on your written task.

Every Sunday, complete your writing task to receive timely feedback.

Year 4 Online OC Preparation Course Details

 Clear, structured theory lessons led by Subject Matter Experts using the Matrix Theory Book.


1. Thinking Skills: Spatial Reasoning (Advanced)

This module covers Advanced Spatial Reasoning.

The topics include, but are not limited to:

  • Reflections and Rotations of 2D and 3D Shapes
  • Multiple Patterns
  • Surface Area and Visibility

For the intermediate Thinking Skills course, visit Year 3 OC Prep course.

2. Mathematical Reasoning: Patterns & Measurements (Advanced)

This module covers Advanced Mathematical reasoning.

The topics include but are not limited to:

  • Number Sentences and Sequences
  • Measurement Problems (time, distance, weight and area)
  • Worded problems

For the intermediate Mathematical Reasoning course, visit Year 3 OC Prep course.

3. Mathematical Reasoning: Puzzles & Combinations (Advanced)

This module covers Advanced Mathematical reasoning.

The topics include but are not limited to:

  • Numerical Puzzles
  • Code Breaking
  • Combinations

For the intermediate Mathematical Reasoning course, visit Year 3 OC Prep course.

4. Thinking Skills: Logical Reasoning (Advanced)

This module covers Advanced Verbal Reasoning and Thinking Skills.

The topics include but not limited to:

  • Logical Arguments
  • Logic puzzles
  • Analysis, Inferences and Evaluation in Texts

For the intermediate Thinking Skills course, visit Year 3 OC Prep course.

enrol online now

Year 4 Online OC Preparation Course Schedule

9-Lesson Online Course

8-Lesson Online Course

Course begins: Tuesday 11 April 2023

Course concludes: End of the 2023 academic year

Resources will be dispatched to enrolled students on Monday 3 April 2023

*View Matrix+ Terms and Conditions here.

Year 4 Online OC Exam Preparation Course Teachers


Ms Isabel Bunting


Isabel completed her Bachelor of Advanced Science (with 1st Class Hons) at the University of Sydney. She has been tutoring and teaching Physics and Mathematics since 2015. More recently, she has tutored and demonstrated Physics at the University of Sydney.

90+ Teachers

Experienced and inspirational

50+ Hours

Matrix Teacher Induction Training

Over 70%

Of teachers are postgraduates

Above 4.6/5

Student satisfaction survey score

Tried and Tested by Matrix Students


"I enjoyed being able to re-play parts of the video that I misunderstood, or needed to hear for a second time. I also liked being able to skip over some sections which I was comfortable with or had already finished. Being able to do this allowed me to learn in a way that matched my abilities, and kept me engaged during the lesson. This really helped in solidifying my understanding of the new content, as well as maintaining my engagement."

Nia Worthington, St Ursula's College Kingsgrove

"The online lesson was very straightforward and easy to follow, it felt like an actual face-to-face lesson! I really liked the annotations and diagrams that my teacher made alongside the content. Through this online platform, it was actually easier for me to understand the teacher. The structure in which the lesson was presented helped me engage with the question and directly answer it, while also allowing me to learn at my own pace."

Justin Kim, Knox Grammar School

"The online theory lessons complete the entire lesson from that week from beginning to end. There are no questions skipped which provides a better sense of completion and finality to each lesson. Being able to pause the video and rewind is very useful as sometimes I know that I require extra time to run over certain concepts which may be new to me or are more challenging."

Emily Dinh, James Ruse Agricultural High School

Year 4 Critical Thinking Online Course Pricing


(inc GST)
per term

Year 4 Critical Thinking Online Course includes:


Online lessons taught by Experienced Teachers

9 Engaging Theory Lesson Videos over 9 weeks

Detailed Theory Book delivered to your home

Access to Matrix LMS featuring additional resources

Individual help through the Q&A Boards

Personalised and detailed feedback on your writing

Triweekly tests to assess your exam readiness. Marking included.

Access Theory Lesson Videos and Q&A Boards until the end of the academic year.

Frequently Asked Questions

What is the OC test and is it suitable for my child?

The Opportunity Class Placement Test or the OC Test is the entrance test for acceptance into Opportunity Classes (OC) for academically gifted students. It is a paper-based exam for a place (out of 1840) offered in one of 77 NSW public schools.

If your child has been performing well with top marks in school reports or received top performance bands in the NAPLAN exam, you should consider applying your child for the OC test.

How can I prepare my child for the OC test?

Opportunity Classes cater to academically gifted Year 5 and 6 students with exceptional critical thinking abilities.

The best way to prepare your child is to ensure they target any weaknesses in their English and Maths. They also need to learn and develop critical thinking skills required to solve all question types in the OC test.​

Who are the teachers in your videos?

Our Matrix classroom Teachers (who are Subject Matter Experts) will be conducting the Online Theory Lesson Videos. They are experienced educators who are knowledgeable and know how to explain things clearly.

How long are the videos online for?

Any students who enrol before Sunday 2 April 2023 at 11pm will automatically receive access to the Theory Lesson Videos from Tuesday 11 April 2023 to allow them to learn ahead in the holidays.

Can I receive early access?

Do I need to re-enrol every term?

Each term, we’ll check in with you about your Matrix+ enrolment for the following term – you can add, change or remove topics or courses. We’ll then print your new resources and deliver them before the new term begins so you can continue your learning.

When will I receive my resources?

Students who enrol before Sunday 2 April 2023, will have their resources express despatched on Monday 3 April 2023.

What Additional help can my child get with Matrix+?

Students will have exclusive access to a Q&A Boards where they can ask questions related to the subject and have them answered by a Subject Matter Expert within 1 working day.

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