math-fun-2-tennis-ball-math

This video shows classroom demonstrations to help students learn that the circumference of a circle is a little more than 3 times the diameter. First a hula hoop is used to motivate interest, and then demonstrations are carried out using a tennis ball can and tennis balls. People often memorize many digits in pi, and learn the formula, "pi times diameter equals circumference", without intuitively understanding that the circumference of a circle is a little more than 3 times the diameter.

Tagged under: diameter,circumference,circle,pi,hula hoop,formula,tennis ,tennis balls,class demonstration,intuitive understanding

Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.

Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip

Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans

1. Students enter a simple code

2. You play the video

3. The students comment

4. You review and reflect

* Whiteboard required for teacher-paced activities

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Quickfire

Carry out a quickfire formative assessment to see what the whole class is thinking

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Student teams can create and share collaborative presentations from linked devices

Clip

Turn any public video into a live chat with questions and quizzes

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Using @SpiralEducation in class for math review. Student approved! Thumbs up! Thanks.

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Dr Ayla Göl
@iladylayla

A good tool for supporting active #learning.

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