Tree Diagrams – Dependent and Independent Events

Animated powerpoint with examples of tree diagrams.


I love teaching probability and tree diagrams are personally my favourite way of solving probability problems, but 2 things always spoil it for me.
The time it takes to make draw tree diagrams and animate them on PowerPoint
The boring context of most probability questions. It’s no wonder that learners ask us why they need to do this, if all the examples consist of spinners and dice. After all how often have you sat down to pick coloured counters from a bag.
If you feel the same about probability, the following slides will make a huge difference.
I always teach dependent events first, but you can mix and match them as you like.

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I have been a maths teacher at one of the top high schools in the country for the past 10 years. Over time I have created a lot of resources, especially slideshows. I love helping other teachers by making these resources available to them.

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