Tree diagram

Make a tree diagram

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What a tree diagram is

“A tree structure, tree diagram, or tree model is a way of representing the hierarchical nature of a structure in a graphical form.”
From Wikipedia — Tree structure — CC BY-SA 4.0

Types of tree diagram

When to use a tree diagram

  • Maths

    Count all the possible outcomes: 2 ways to have it times 3 flavours makes 6 choices.

  • Sorting

    Sort choices step by step, so you do not miss one or count one twice.

  • With kids

    Kids can count the ends of the branches to find how many different ice creams there are.

How to make a tree diagram

  1. 1Start
  2. 2First choice
  3. 3Second choice
Make a tree diagram

Helpful resources

Trees & hierarchies

More trees & hierarchies

Questions

Why is the tree upside down?
It is named a "tree structure" because the classic representation resembles a tree, although the chart is generally upside down compared to a biological tree, with the "stem" at the top and the "leaves" at the bottom.From Wikipedia — Tree structure — CC BY-SA 4.0
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