Thinking Skills assesses how effectively students analyse information, solve unfamiliar problems, evaluate claims and apply logic. This advanced guide is written for Year 4 students preparing for the NSW Opportunity Class Placement Test.
The 50 original questions below use four answer choices and reflect the main reasoning styles seen in OC practice materials: deduction, argument evaluation, conditional logic, sequencing, constraints, codes, patterns and spatial reasoning.
Thinking Skills questions measure reasoning ability rather than knowledge from a particular school subject.
Students may encounter questions involving:
The focus is on how students think, not simply what they know.
Strong reasoning skills help students:
These skills are valuable throughout school and beyond.
Prepare your child for the NSW Opportunity Class (OC) Test with comprehensive OC practice tests, sample questions and realistic online mock exams designed for Year 4 students. The OC Test is a competitive assessment for students seeking entry to Year 5 Opportunity Classes in NSW public schools, assessing key skills including Reading, Mathematical Reasoning and Thinking Skills.
Our OC Test preparation resources are developed using the NSW curriculum, previous test patterns and NSW Department of Education sample materials to help students become familiar with the question types, difficulty level, test format and time-management requirements. With thousands of real-style OC Test questions, full-length practice tests, detailed answers and performance analysis, students can identify their strengths and weaknesses and build a more effective preparation strategy.
Regular practice helps Year 4 students improve reading comprehension, mathematical problem-solving, logical thinking, reasoning and exam confidence before the Opportunity Class Test. Whether your child is looking for OC practice tests, OC sample papers, Opportunity Class Test questions or online OC Test preparation, practising with realistic questions can provide valuable experience and help them approach the assessment with greater confidence.
Analogies test a student's ability to identify relationships between words or concepts.
Chapter is to book as scene is to:
Answer: B
Explanation:
A chapter is one part of a book. In the same way, a scene is one part of a play.
Transparent is to opaque as flexible is to:
Answer: B
Explanation:
Transparent and opaque are opposites. Flexible and rigid are also opposites.
A compass helps a traveller find direction.
A timetable helps a passenger find:
Answer: C
Explanation:
Both objects provide important information: a compass shows direction, while a timetable shows when a service departs.
Sapling is to tree as foal is to:
Answer: A
Explanation:
A sapling is a young tree. A foal is a young horse.
Editor is to newspaper as conductor is to:
Answer: B
Explanation:
An editor coordinates the work that forms a newspaper. A conductor coordinates the musicians in an orchestra.
Choose the item that does not belong.
Which code does not follow the same mirror pattern as the others?
Answer: D
Explanation:
In ABBA, CDDC and EFFE, the letters read the same forwards and backwards. GHHI does not.
Which number does not follow the same digit rule as the others?
Answer: D
Explanation:
In 24, 35 and 46, the ones digit is 2 more than the tens digit. In 58, it is 3 more.
For three of these pairs, the alphabet positions of the two letters add to 27.
Which pair does not belong?
Answer: D
Explanation:
A + Z, B + Y and C + X have position totals of 27. E + U gives 5 + 21 = 26.
Which word cannot be made by rearranging exactly the same four letters as the others?
Answer: D
Explanation:
CARE, RACE and ACRE all use A, C, E and R. CAGE uses G instead of R.
Each pair should show a quarter-turn clockwise from the first direction to the second.
Which pair is incorrect?
Answer: D
Explanation:
A quarter-turn clockwise from west points north, not south.
Find the next number.
4, 7, 13, 25, ?
Answer: C
Explanation:
Each number is double the previous number minus 1: 4 x 2 - 1 = 7, then 7 x 2 - 1 = 13. Therefore, 25 x 2 - 1 = 49.
Find the next number.
3, 8, 18, 38, ?
Answer: C
Explanation:
The rule is multiply by 2, then add 2. So 38 x 2 + 2 = 78.
Find the next number.
81, 80, 76, 67, 51, ?
Answer: C
Explanation:
The decreases are consecutive square numbers: 1, 4, 9 and 16. The next decrease is 25, so 51 - 25 = 26.
When answering reasoning questions:
Following this process reduces careless mistakes and improves accuracy.
Students often lose marks because they:
Building a consistent approach helps improve confidence and performance.
| Day | Focus Area | Suggested Time |
|---|---|---|
| Monday | Relationships and Classification | 20 minutes |
| Tuesday | Sequences and Codes | 20 minutes |
| Wednesday | Deductive and Conditional Logic | 25 minutes |
| Thursday | Arguments and Evidence | 25 minutes |
| Friday | Ordering and Spatial Reasoning | 30 minutes |
| Saturday | Timed Mixed Set | 30 minutes |
| Sunday | Review Incorrect Answers | 20 minutes |
Short, regular sessions are generally more effective than occasional long study periods.
To build balanced skills across all sections of the OC Placement Test, continue with:
Students who want structured lessons, full-length mock exams and detailed performance analysis can also explore the Opportunity Class OC Test 2027 course.
These questions test whether students can identify strong evidence, valid conclusions and mistakes in reasoning.
A teacher says, 'Working in the school garden can improve students' science learning.'
Which statement, if true, best supports the teacher's claim?
Answer: B
Explanation:
Option B directly connects gardening activities with observing and measuring scientific processes.
All gold medals in a competition are round.
Leo finds a round object and concludes, 'It must be a gold medal.'
What is the mistake in Leo's reasoning?
Answer: C
Explanation:
Knowing that all gold medals are round does not mean that every round object is a gold medal.
Whenever the security alarm is set, a red light flashes.
The red light is not flashing.
Which conclusion must be true?
Answer: A
Explanation:
If setting the alarm always makes the light flash, a non-flashing light means the alarm cannot be set.
A principal claims that reusable drink bottles reduce plastic waste at school.
Which statement, if true, gives the strongest support?
Answer: C
Explanation:
A measured fall in disposable-cup waste after the change is direct evidence for the claim.
Recognising patterns quickly is an essential Thinking Skills ability.
A flag pattern repeats in this order:
red, blue, blue, green, yellow
What colour is the 43rd flag?
Answer: B
Explanation:
The pattern repeats every 5 flags. 43 divided by 5 leaves a remainder of 3, so the 43rd flag matches the third colour: blue.
Find the missing letter.
B, E, J, Q, ?
Answer: C
Explanation:
The jumps are 3, 5, 7 and then 9 alphabet places. Nine places after Q is Z.
Find the next letter pair.
AZ, CX, EV, GT, ?
Answer: B
Explanation:
The first letters move forward by 2: A, C, E, G, I. The second letters move backwards by 2: Z, X, V, T, R.
A pattern contains 1 triangle, then 2 squares, then 3 circles, then 4 triangles, then 5 squares.
What comes next?
Answer: A
Explanation:
The shape cycle is triangle, square, circle, while the number of shapes increases by 1 each time. Therefore, 6 circles come next.
Deductive reasoning requires students to reach logical conclusions using the information provided.
Four books, J, K, L and M, are placed in a row from left to right.
J is somewhere to the left of L. K is not at either end. M is immediately to the right of K.
Which statement must be true?
Answer: A
Explanation:
K-M can occupy positions 2-3 or 3-4. In either case, the remaining positions force J to be at the far left so that J is left of L.
Every member of the chess club is also a member of the library club.
Some library-club members are in the choir. Maya is in the chess club.
Which statement must be true?
Answer: A
Explanation:
Since all chess-club members belong to the library club, Maya must be in the library club. Nothing proves that she is in the choir.
Either Art or Music is the first lesson.
If Art is first, Science is the last lesson. Science is not the last lesson.
Which statement must be true?
Answer: B
Explanation:
Art cannot be first because that would make Science last. Since either Art or Music must be first, Music must be first.
Code questions encourage students to identify hidden rules.
In a code, the 1st and 3rd letters move forward 2 alphabet places, while the 2nd and 4th letters move forward 1 place.
For example, PARK becomes RBTL.
How is MIND written?
Answer: A
Explanation:
M moves to O, I to J, N to P and D to E, giving OJPE.
A secret code pairs opposite letters of the alphabet: A becomes Z, B becomes Y, C becomes X, and so on.
CAT becomes XZG and DOG becomes WLT.
How is BEE written?
Answer: A
Explanation:
B pairs with Y and E pairs with V, so BEE becomes YVV.
Five runners finish a race. Eli finishes before Ava. Ava finishes before Ben. Chen finishes immediately after Ben. Dana finishes last.
Who finishes third?
Answer: B
Explanation:
The only order is Eli, Ava, Ben, Chen, Dana. Ben is third.
Four clubs meet from Monday to Thursday, one club each day: Art, Chess, Drama and Music.
Chess meets on Monday. Music meets immediately after Art. Drama meets after Music.
Which club meets on Wednesday?
Answer: D
Explanation:
After Chess on Monday, the only possible order is Art on Tuesday, Music on Wednesday and Drama on Thursday.
Five children, P, Q, R, S and T, stand in a queue facing the front.
Q is first. R is immediately in front of S. P is somewhere behind S. T is not last.
Who must be last?
Answer: A
Explanation:
Whether R-S occupy positions 2-3 or 3-4, P must be behind S. Since T cannot be last, P must take the final position.
When you're unsure of the correct answer:
This approach increases accuracy, especially in multiple-choice reasoning questions.
Students can strengthen Thinking Skills by regularly engaging in activities such as:
These activities encourage flexible thinking and problem-solving in enjoyable ways.
During the Thinking Skills section:
Good time management allows students to maximise their score across the entire section.
Read each question carefully before selecting the best answer.
One of Aria, Ben and Cara broke a vase.
Aria says, 'I did not break it.' Ben says, 'Aria broke it.' Cara says, 'Ben did not break it.'
Exactly one statement is true. Who broke the vase?
Answer: B
Explanation:
If Ben broke it, Aria's statement is true, while Ben's and Cara's statements are false. The other possibilities make two statements true.
Whenever the train is late, Maya phones her father.
Today Maya did not phone her father.
Omar says, 'The train was not late.' Priya says, 'The train was late, but Maya forgot to phone.'
Whose reasoning is correct?
Answer: A
Explanation:
The rule says a late train always leads to a phone call. Because there was no call, the train cannot have been late. Omar is correct.
All blue cards are square. No square cards are striped.
This card is striped.
Which statement must be true?
Answer: A
Explanation:
A blue card would have to be square, and no square card can be striped. Therefore, a striped card cannot be blue.
A student may enter the science laboratory only if the student has permission.
Zoe entered the laboratory.
Sam says, 'Zoe has permission.' Eli says, 'Zoe might not have permission.'
Whose reasoning is correct?
Answer: A
Explanation:
The phrase 'only if' makes permission necessary for entry. Since Zoe entered, she must have permission.
Although the official test may include diagrams, you can still strengthen visual reasoning by imagining shapes and positions.
Tariq faces north. He walks 3 steps, turns right and walks 4 steps, turns right and walks 3 steps, then turns left and walks 2 steps.
Where is Tariq compared with his starting point?
Answer: B
Explanation:
The 3 north and 3 south steps cancel. Tariq moves 4 steps east and then another 2 steps east, finishing 6 steps east of the start.
The library is east of the park. The pool is north of the library. The school is west of the pool.
In which direction is the school from the park?
Answer: A
Explanation:
Moving east, then north, then west cancels the east-west movement. The school is directly north of the park.
Four students sit around a table facing the centre. Mia sits opposite Raj. Sia sits immediately to Mia's left. Tane takes the remaining seat.
Who sits immediately to Raj's right?
Answer: B
Explanation:
People opposite each other face in opposite directions. The seat on Mia's left is also the seat on Raj's right, so Sia is immediately to Raj's right.
Critical thinking questions assess your ability to evaluate information and draw sensible conclusions.
A school placed plants in every classroom. During the same month, student absences fell.
The principal concludes, 'The plants caused the fall in absences.'
What is the main weakness in this reasoning?
Answer: C
Explanation:
Two events happening together does not prove that one caused the other. Another change could explain the lower absence rate.
A researcher claims that beginning school later helps students stay alert in the first lesson.
Which evidence would give the strongest support?
Answer: C
Explanation:
Comparing the same students on similar tasks before and after the change directly tests the claim about alertness.
Eight members of the computer club say they prefer e-books. Lina concludes that every student in the school prefers e-books.
Which fact most weakens Lina's conclusion?
Answer: B
Explanation:
A small group chosen from a computer club is not a fair sample of all students, so its preferences cannot safely be applied to the whole school.
Lara, Miko and Ned take turns choosing one snack from an apple, a banana and a cookie.
Lara's preference order is apple, banana, cookie. Miko's is banana, cookie, apple. Ned's is apple, cookie, banana.
Each child takes the highest available preference. Lara ends up with the cookie.
Which child must have chosen last?
Answer: A
Explanation:
For Lara to take her third choice, both the apple and banana must already be gone. Therefore, Lara must choose last.
A box contains 12 red beads, 10 blue beads and 8 green beads.
Which bracelet can be made using the available beads?
Answer: C
Explanation:
Option C uses no more than the available number of each colour. Every other option requires too many beads of at least one colour.
Five workshops, P, Q, R, S and T, run from Monday to Friday, one each day.
P is before Q. R is immediately after Q. T is on Friday. S is before P.
Which workshop runs on Wednesday?
Answer: B
Explanation:
The four workshops before Friday must follow the chain S, P, Q, R. Therefore, Q is on Wednesday.
Many Thinking Skills questions are solved more easily when you first identify the relationship instead of trying to calculate an answer immediately.
Ask yourself:
Developing this habit helps students solve unfamiliar questions more confidently.
Thinking Skills improve gradually through consistent exposure to different types of reasoning tasks.
Students should regularly practise:
A variety of question types encourages flexible thinking rather than memorisation.
Parents can help strengthen Thinking Skills by encouraging curiosity and discussion.
Try asking questions such as:
These conversations help children develop logical reasoning and confidence.
Complete the following eight challenging questions in about 10 minutes. Answer each question before checking the worked solution.
Everyone who enters the maze is given a map.
Jo has a map.
Which conclusion is justified?
Answer: C
Explanation:
Entering the maze guarantees a map, but the rule does not say that entering is the only way to get one. Jo's map alone does not prove entry.
A tile pattern repeats as follows:
white, black, black, purple, red, red, red
What colour is the 100th tile?
Answer: B
Explanation:
The pattern has 7 tiles. 100 divided by 7 leaves a remainder of 2, so the 100th tile matches the second tile: black.
Five boxes, A, B, C, D and E, stand in a row.
C is in the middle. A is immediately to the left of B. E is at the far left.
Which box is at the far right?
Answer: B
Explanation:
E occupies position 1 and C position 3. The only adjacent spaces available for A-B are positions 4-5, placing B at the far right.
A teacher claims that five minutes of quiet reading before class improves concentration.
Which evidence gives the strongest support?
Answer: B
Explanation:
Option B directly compares concentration performance with and without quiet reading, making it the strongest evidence.
One of Ava, Noah and Mia has a token.
Ava says, 'Noah has it.' Noah says, 'Mia has it.' Mia says, 'I do not have it.'
Exactly one statement is false. Who has the token?
Answer: B
Explanation:
If Noah has it, Ava and Mia tell the truth while Noah's statement is false. The other choices make two statements false.
A code reverses a word and then moves every letter forward one alphabet place.
PARK becomes LSBQ.
How does MINT appear in the code?
Answer: A
Explanation:
MINT reversed is TNIM. Moving each letter forward one place gives UOJN.
Nina is 40 metres from the end of a path when she notices that she dropped a book.
She walks back 60 metres to collect it, then a further 70 metres back to collect her hat, before walking to the end of the path.
How much farther than usual does Nina walk?
Answer: C
Explanation:
Nina walks 130 metres backwards and must then walk those same 130 metres forwards again. The extra distance is 130 + 130 = 260 metres.
Only players wearing an identification badge may enter the arena. Every player who enters must sign the register.
Kai entered the arena.
Which statement must be true?
Answer: A
Explanation:
Entry requires both conditions: Kai needed a badge to be allowed in, and every entrant must sign the register.
Use this checklist after each practice session.
Consistent review helps strengthen reasoning skills over time.
On the day of the Opportunity Class Placement Test:
Remember that Thinking Skills questions are designed to assess how you think, not how much you have memorised.
Thinking Skills assess reasoning, logic, pattern recognition, problem-solving and critical thinking rather than knowledge of a specific school subject.
Students improve by practising a wide range of reasoning questions, reviewing explanations and regularly solving unfamiliar problems.
Some questions are intentionally challenging, but regular practice helps students recognise common reasoning patterns and improve confidence.
Three to five practice sessions each week, combined with regular review, can help students steadily strengthen their reasoning abilities.
Yes. Parents can encourage logical thinking by discussing everyday situations, asking open-ended questions and introducing puzzles, board games and reasoning activities.
High-quality online practice tests help students become familiar with exam-style questions, improve time management and identify areas requiring further practice.
To build well-rounded preparation, continue with:
Working through these resources provides balanced preparation across all sections of the NSW Opportunity Class Placement Test.
Thinking Skills are valuable long after the OC Placement Test.
Students who regularly practise logical reasoning often become better at:
These abilities support learning across mathematics, science, reading comprehension and everyday decision-making.
Strong Thinking Skills are developed through consistent practice, careful reflection and exposure to a wide variety of reasoning challenges. By working through analogy questions, logical reasoning tasks, sequences, classification activities and critical thinking exercises, students can improve both confidence and accuracy.
Use this page alongside your OC Reading Practice and OC Mathematical Reasoning Practice resources to create a balanced study routine. Once students are comfortable with individual skill areas, they should progress to full-length mock tests to simulate real exam conditions.
For a more structured preparation experience, our Opportunity Class OC Test 2027 course offers comprehensive lessons, realistic mock exams, detailed explanations and progress tracking to help students prepare with confidence.
