Teacher Review (Based on classroom experience) Reviewer: Craig, Apr 12 2005 11:47:22:417AM |

Classroom use in Courses and Topics: Algebra: Graphing Quadratics |

Duration of classroom use: One Class |

What did students learn? I used Function Flyer to demonstrate the role of "a" in the vertex form of a quadratic function, f(x) = a(x - h)^2 + k. |

What did students do with the resource? Observed |

How hard was it for students to use? Very Easy |

Other classroom comments: Students liked the slider. |

Appropriate for: introduction to a concept, applications of a concept or technique |

Other Comments: I put the cursor one unit to the side of the vertex of the parabola, and observed that the y-coordinate was "a" away from the y-coordinate of the vertex. |

What math does one need to know to use the resource? How to write functions algebraically |

What hardware expertise does one need to learn to use the resource? None |

What extra things must be done to make it work? Nothing |

How hard was it for you to learn? Very Easy |

Explanation: To obtain a slider, just type in 1 (or any number) as a coefficient. The applet automatically interprets any numerical parameter as a slider. |

Ability to meet my goals: Effective |

Recommended for: Algebra: Polynomials, Graphing Quadratics |

Tool: Function Flyer Review