Odd One Out: Shapes and Colours
This free odd one out activity helps young children look closely at shapes and colours. Each round shows four pictures. Three of them match in some way, and one is different. Your child studies all four, then taps the one that does not belong.
Some rounds are about shape, like circles and squares. Others are about colour, like three red things and one blue. After every answer, a short reason appears, so children learn the thinking behind the choice. It is a gentle, screen-friendly game for preschool and early primary learners.
How to play
- Look at all four pictures in the row and say their names out loud.
- Ask yourself: what do three of them have in common, shape or colour?
- Tap the one picture that does not match the other three.
- Read the reason shown, then move on to the next group.
Spotting the odd one out is early logical thinking. To answer, your child must name each picture, compare them, find the shared rule, and then apply it. That is classifying and reasoning, the same skills used later in maths sorting tasks and in reading comprehension. This set builds two specific ideas: that shapes stay the same shape in any colour, and that colour is a separate property from shape. Sit beside your child and ask, "Why do you think so?" Explaining the reason in words is just as valuable as picking the right picture.
Frequently asked questions
What age is this odd one out activity best for?
My child picks the wrong one. How can I help?
Is this activity free and does it need any login?
What skills does odd one out teach?
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Updated 5 Nov 2026