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11+ Verbal Reasoning · Year 5–6 · Free lesson

Odd One Out

Trout, shark, cod, dolphin — all swim, but three are fish. Odd-one-out marks go to children who name the tightest category before choosing. This lesson builds that habit.

V6Odd One Out
Three belong together. One doesn't.
Odd-one-out questions test precise categories — name the group first.
Which is the odd one out?
applebananacarrotplum
Three are fruits → carrot (a vegetable) is the odd one out.
Name the category of the majority FIRST — then the outsider names itself.
1

Learn the 3-Step Method

1Find what most share.

Apple, banana, plum: fruits. State the category in words.

name the group

2Test every member against it.

Is carrot a fruit? No — it’s the outsider.

test each

3Prefer the tighter category.

Trout, shark, cod, dolphin: all swim — too loose. Three are FISH; dolphin is a mammal. Tighter wins.

tightest group
💡 Key IdeaIf two different answers seem right, your category is too loose — tighten it until exactly one word falls outside.
2

Worked Example

Odd one out: chair, table, wardrobe, kitchen.

Category
chair, table, wardrobe = furniture
→
Test the fourth
kitchen = a room, not furniture
→
✓ Odd one
kitchen
3

Watch Out! Common Mistakes

✕
Personal-preference categories.

Not ‘the one I dislike’! Categories must be factual — fruit/vegetable, fish/mammal, furniture/room.

✕
Surface features over meaning.
banana odd “because it’s long” ✕

Meaning first! Shape and letter-count categories are rarely the intended ones when a clean meaning group exists.

✕
Stopping at the first plausible answer.

Test all four! The dolphin trap catches children who see ‘all sea creatures’ and stop. Check each member against the tightest group.

⬇ Cheat Sheet

ODD ONE OUT
  1. Name the majority's category in words.
  2. Test every option against it.
  3. Two possible answers → tighten the category.
  4. Meaning beats surface features (length, letters).
Examples: carrot (vegetable among fruits) · dolphin (mammal among fish) · kitchen (room among furniture).
📄 Free printable: Download the Odd One Out cheat sheet (PDF) — keep it by your child's desk.

Quick summary

Frequently asked questions

How do you find the odd one out?

Name what most of the words have in common — precisely — then the word that fails the test is the answer: fruits leave the carrot outside.

What is the dolphin trap?

A category that's too loose: trout, shark, cod and dolphin all swim, but only three are fish. Tight categories expose the mammal.

Are letter-based categories ever the answer?

Occasionally in VR papers, but only when no clean meaning category exists — always try meaning first.

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