Eventmath/Lesson plans/Medium versus large pizzas
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Lesson plan overview | |
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Title | Medium versus large pizzas |
Assumed knowledge | Students should be familiar with the concept of area, be able to identify the diameter and radius of a circle, and be somewhat familiar with π (there is no explanation of how π was discovered in this lesson). |
Activities | Through exploring pizza sizes and areas of a circles, students will learn how to...
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Class time | 15-30 minutes |
Source | |
"I ordered a 9-inch Pizza". Twitter. 2022-06-29. Archived from the original on 2022-07-26. {{cite web}} : |archive-date= / |archive-url= timestamp mismatch (help) | |
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Activities
edit- Begin by displaying the linked tweet above. Gain students attention by asking "Why was Roy requesting to call the owner? Were they so happy with the "extra" bit of pizza that they wanted to thank them? Was Roy unhappy?" Have students think-pair-share for a short period of time to get their initial thoughts. (Make sure to only display the first tweet - part 1/3). Perhaps use a polling system, like Kahoot!, to guage student reactions to the question.
- Proceed to identifying the goals of the lesson:
- At the end of this lesson, you will be able to...
- calculate the area of a circle given diameter
- analyze the relationship between diameter and area of a circle
- Activate student's prior knowledge about parts of circles (specifically diameter) by using diagrams of pizzas. Using the attached handout, have students label the diagrams by specifically asking the students "What part of the pizza (circle) does 5" refer to?" Also ask "What part of the pizza does 9" refer to?".
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