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- A hula hoop is like a racetrack: Calculating the circumference, radius, and area of a circle
- In On track learning: Safety through technology and design, page 10
- In this lesson, students will use hoops of different sizes to explore geometry concepts such as circumference, area, and radius. They will also use indirect measurement and calculate percent of error.
- Format: lesson plan (grade 7–10 Mathematics)
- By Roxanne Moses.
- On track learning: Safety through technology and design
- This unit is an eighth grade curriculum that integrates 4-H topics with science and math. Using the theme of safety and NASCAR racing, the overall objective is for students to design a car that will protect its passenger from injury.
- Format: lesson plan (multiple pages)

