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At the Grecian Pizza Parlour, new employee, Ambrose, learns how to make pizzas. The boss needs to teach Ambrose about radius and diameter as he puts the cheese strips onto the circular pizza for his first customer. Three radius and diameter questions of increasing difficulty are posed at the end of the scenario to consolidate the learning.
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Classroom Ideas

What’s the difference between radius and diameter? Watch the clip which explains both words and pause at the question "What is the connection between the radius and diameter?" Get the children to respond. Pause at the questions involving the diameter and radius of the pizza. By either baking their own pizzas, the children could calculate the radii or diameter of each section, or create their own model pizza with given radii and apparatus. Would it work with a square or would we refer to it as a different mathematical term?

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