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• Some people collect objects such as coins, pens, key rings and even shells picked up on beaches. Sometimes the collection is so big that organizing it becomes really complicated. If you are a collector, try organizing your collection using a decision tree.

• You can do the same with living things. Make a list of 12 living things (they can be plants like an oak tree, fungi like mushrooms, animals like a lynx, etc.). Then build a decision tree where, through questions/answers, you can classify all the living things chosen, like in this quick example:

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