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Identify the odd one out using counting methods

In this worksheet, students will identify an image that does not fit in with the rest of the group. The focus will be on counting, which could involve counting sides, shapes or lines.

'Identify the odd one out using counting methods' worksheet

Key stage:  KS 2

Curriculum topic:   Spatial and Non-Verbal Reasoning

Curriculum subtopic:   Odd One Out

Difficulty level:  

Worksheet Overview

Welcome shape sorter.  

We’re in a bit of a tricky situation, our shape sorting robot seems to have malfunctioned and not sorted the shapes correctly.  

Could you help us find the odd one out and help solve this puzzle?

 

Which of the shapes below is the odd one out and doesn’t fit well with the others?

a)         b)         c)         d)         e) 

First, we need to look for something that four of the shapes have in common.

It is always a good idea to count the number of sides first.

Shapes a, b, c and e all have four sides and we call these shapes quadrilaterals.

So shape d is the odd one out as it has five sides.


 

Let’s try another one together:

Which shape below is the odd one out?

a)         b)         c)         d)         e) 

First, we need to look for something that four of the shapes have in common.

All of the shapes are circles with squares inside.  It’s always a good idea to see if there is anything we can count in this type of question. What could we count?

If you count the number of squares, you will notice that shapes a, b, c and d all have five squares inside them.

This means that shape e is the odd one out as it has only four squares in the middle not five.



It’s now your turn to identify the odd shape.

The theme is counting so always be on the lookout for what you can count.

 

Good luck shape sorter!

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