**Teacher:** |
**ll right, let's make it into a cylinder.
Magic... cylinder.** |

**Teacher:** |
**What part of that sheet of paper
is what on the cylinder?** |

**Teacher:** |
**Okay, that's your first job. You
know how big a sheet of paper is.** |

**Teacher:** |
**How big is it?** |

**Student:** |
**8 and-a-half by 11...** |

**Teacher:** |
**8 and-a-half by 11. So, once it's
a cylinder, what is this?** |

**Student:** |
**The height. ** |

**Teacher:** |
** It's the height. Do you know how
big it is? ** |

**Student:** |
**8 and-a-half inches.** |

**Teacher:** |
**And what is this part? ** |

**Student:** |
**The circumference.** |

**Teacher:** |
**Circumference.** |

**Teacher:** |
**So,
if that's the circumference, then how big is it? ** |

**Student:** |
**11 inches.** |

**Teacher:** |
**Okay now... where's r? That's another
thing that I need for you to think about.** |

**Teacher:** |
**Do you know the formulas for circumference
and volume?** |

**Teacher:** |
**I've written them down, so it's okay.** |

**Teacher:** |
**Go for it.** |

**Teacher:** |
**Go for it.** |