Don’t Waste Months Studying The Wrong Topics: Uncover Your Child’s Selective Maths Gaps Tonight. (100% Free Instant Access)

Parents across NSW are using these 5 full-length online mock exams to pinpoint exact exam weaknesses and stop silly mistakes before test day.

PrepLab PDF Report and Diagnostic Mock Exam

Next Step: Complete 3 Quick Details To Unlock Your 5 Free Mock Exams & Instant Report Card

What Year is Your Child in? *

check_circle 100% Free. No credit card required. Instant login access.

How Does It Work?

Step 1

Take a Practice Test

Have your child complete a simulated 40-minute test on a platform engineered specifically to mirror official NSW Selective test conditions, timer constraints, and question formatting.

Step 2

Receive Your PDF Report & Solutions Key Straight To Your Inbox

Your report package includes:

check_circle
Full Category Breakdown: Identifies specific topic gaps in word problems, geometry, algebra, and logic.
check_circle
Time & Pacing Analysis: Pinpoints rushing, fatigue, or time lost on complex multi-step questions.
check_circle
Full Written Worked Solutions: Complete step-by-step explanations for every question to go over at home.

help Still Not Convinced?...

Frequently Asked Questions

Everything you need to know about your 5 free practice tests and report card.

So how does it work? arrow_drop_down

You select your child's year level and enter your email above. Your child completes a simulated 40-minute online maths test, and you instantly receive a complete diagnostic PDF report with full worked solutions sent directly to your inbox.

Who are you guys? arrow_drop_down

We run CH Tuition in Castle Hill with over 7+ years of experience focusing exclusively on selective math. Over the years, we have helped over 500 students and run a Facebook group with 600+ members. We are currently waitlisted and not accepting enrolments for any new students, so we built PrepLab as a way to showcase the quality of our resources and provide value to the community.

Do you try to upsell us an expensive tutoring course afterwards? arrow_drop_down

No. You get 5 full practice tests and detailed PDF report cards 100% free with zero obligation. We use PrepLab as a way to showcase the quality of our resources, hoping that if you like them enough, you might consider exploring our practice paper bundles down the track.

How quickly do I get the PDF report and solutions? arrow_drop_down

Instantly! As soon as your child clicks submit on the practice test, the full diagnostic breakdown and step-by-step worked solutions key are sent straight to your email.

How long does each practice test take? arrow_drop_down

Each test is timed for 40 minutes to accurately replicate official NSW Selective test conditions, but your child can sit down and complete it whenever it fits into your schedule at home.

Is this suitable for Year 4 and Year 5 students? arrow_drop_down

Yes! It is ideal for Year 5 students preparing for the upcoming Selective test, and for Year 4 students who want to establish a baseline early and catch topic gaps well before Year 6.

What syllabus and subjects are covered in the practice tests? arrow_drop_down

Covers all key mathematical areas prescribed by the latest examination standards, including:

check Probability check Algebra check Perimeter & Area check Pie Charts check Rounding Problems check Magic Squares & Diagrams check Tables & Charts check Time Zones check Percentages check Speed & Motion check Fractions check Ratios check Money Problems check Shape Algebra check Number Patterns check Angles & Protractors check Visual Reasoning check Volume check Compass Bearings check Measurement check Axis of Symmetry check Factors & Multiples

Will I get spammed with messages? arrow_drop_down

No, absolutely not. We respect your inbox. You will only receive your 5 free practice test access links, your child's instant PDF diagnostic report cards, and occasional high-value preparation tips. You can unsubscribe at any time with a single click.

Is this some sort of scam? arrow_drop_down

Not at all! We are CH Tuition, a real physical tutoring centre based in Castle Hill, Sydney. We built our PrepLab digital platform to help NSW families prepare for Selective & Opportunity Class entry. We offer 5 free tests so you can experience our quality firsthand before deciding if you want anything else.

How do you ensure the quality of the questions? arrow_drop_down

Every single question is engineered by tutors with over 7+ years of experience focusing solely on teaching Selective Maths. We continuously align our question bank with Cambridge-style problem-solving formats, multi-step word problems, and real exam difficulty so your child doesn't get caught off guard.

Did you guys just AI generate the questions? arrow_drop_down

No. Our head teacher and founder wrote and checked these questions personally, and every paper was further thoroughly reviewed by 2 additional senior tutors. You'll also notice many questions feature custom-built visual diagrams and graphics made specifically to replicate the actual exam format.

Do I need to enter my child’s personal name or school details? arrow_drop_down

No. You only need to provide your parent email address to receive the results and report. Your child can take the diagnostic anonymously.

How do you protect our privacy and data? arrow_drop_down

We never sell or share parent data with third-party tutoring agencies or marketers. Your email is strictly used to deliver your child's test reports and practice resources.

Can my child retake the diagnostic test to see if they’ve improved? arrow_drop_down

Yes, your child can retake tests to track how their accuracy and speed improve over time.

Can my child complete the online test on an iPad or tablet? arrow_drop_down

Yes! The online platform works seamlessly on iPads, tablets, laptops, and desktop computers. All they need is an internet browser.

How do the worked solutions actually look? Will my child understand them? arrow_drop_down

Every single question comes with a clear, step-by-step logical breakdown (not just a multiple-choice answer key like "A" or "B"). They are written so Year 4 and Year 5 students can do independent correction at home.

How accurate is this diagnostic score compared to the actual Selective exam? arrow_drop_down

Our questions are written specifically around current NESA multi-step reasoning guidelines and co-developed with local families to match modern exam difficulty, not old-school basic arithmetic. We aim to be as close in difficulty to the real thing to reflect the most accurate results.

redeem Still Not Convinced?

We'll throw in these bonuses for you!

We get it, preparing for the Selective Exam is incredibly stressful.

You want to give your child every possible advantage, but finding the right resources often feels like a guessing game.

That’s exactly why we’re handing you our closely guarded frameworks completely free.

These aren't just generic worksheets. They are the exact, step-by-step blueprints our top-performing students use to build unshakeable confidence, dodge common exam traps, and secure their spots.

Don't let your child walk into test day unprepared. Claim these exclusive bonuses right now and give them the ultimate competitive edge.

check Included Free

4x FREE MATH MINI SELECTIVE TESTS

Value: $19.99

Gain the upper hand with extra mock exams that perfectly mirror the real test conditions. These mini tests are designed to rapidly build your child's speed, accuracy, and confidence before the big day.

Includes:

check_circle Quick, targeted practice to build momentum and familiarity with exam conditions
check_circle Format-aligned for 2027 test structure and difficulty
check_circle Full curriculum coverage
check_circle Co-developed and vetted with feedback from over 50 local families to target the exact traps that trip students up on test day

check Included Free

16 PAGE CH Tuition Selective Math Prep Guide

Completely FREE. Don't miss out on having your child be the most prepared possible.

Includes:

check_circle An overview of the test format and scoring system
check_circle Key dates and a simplified application timeline
check_circle A detailed list of all math topics your child needs to master
check_circle A 4-step preparation framework that's easy to follow
check_circle Insights into reasoning-style questions and multi-step problems
check_circle Test strategies to build speed, accuracy and confidence

William Chen

Founder & Head Teacher

CH Tuition | Castle Hill, Sydney

school Who Are We?

Hi, I'm William

Over 500+ students helped. 7+ years of NSW Selective Maths excellence.

For over seven years, CH Tuition has specialised exclusively in NSW Selective mathematics in Castle Hill, supporting a thriving local community of 600+ parents.

To make top-tier preparation accessible to more families, we created PrepLab - giving parents statewide direct access to our personally authored, Cambridge-aligned practice materials completely risk-free.

verified 7+ Years Selective Maths Focus

groups 500+ Students Helped