Branch out with a tree diagram. A presentation on complex probability explains the process of creating a tree diagram to represent the possible outcomes in a scenario. It then uses the diagram to calculate the probabilities of each of the possible outcomes. 

Concepts

conditional probability, probability, tree diagrams

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Additional Tags

math

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Instructional Ideas

• Present the task before playing the video; ask pupils to brainstorm methods to calculate a specific probability
• Conduct an experiment to test the probabilities calculated

Classroom Considerations

• Requires Internet access to view the YouTube video
• The fourth lesson in a six-part series

• This video is hosted on YouTube

Pros

• Animations enrich the lesson and provide a clear connection from the problem to the tree diagram
• Shows all of the possible probability calculations, which creates a complete picture for the learner

Cons

• The lesson calculates different types of probability, and the emphasis on conditional probability is not clear

Common Core

HSS-CP.B.6