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  • Catching a Cold

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about infectious disease. The probe is designed to find out whether students use the germ theory to explain what causes an infectious disease like the…

  • Batteries, Bulbs, and Wires

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about complete circuits involving lightbulbs. The probe reveals whether students recognize the pathway of electricity in a complete circuit, including…

  • Standing On One Foot

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about weight and pressure. The probe is designed to determine whether students think their weight changes when the force exerted per unit area (pressure…

  • Sam’s Puppy

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about growth. The probe can be used to determine whether students recognize that growth occurs as a result of cell division, which increases the number…

  • Ice Water

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about temperature in the context of phases of matter. The probe is designed to find out if students recognize that the temperature of a substance does…

  • Is It Food?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about food. The probe is designed to find out if students use a scientific definition of food to distinguish food items from nonfood items.

  • Adaptation

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about biological adaptation. The probe is designed to find out if students think animals intentionally adapt to a change in their environment.

  • Chicken Eggs

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about food, transformation of matter, growth and development, conservation of mass, and systems. The concepts underlying this probe are complex. It is…

  • Rolling Marbles

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about circular motion. The probe is designed to determine whether students recognize that an object will move in a straight line unless acted upon by an…

  • Coldest Winter Ever!

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about weather versus climate. The probe is designed to find out if students distinguish between a one-time weather-related change and a change in climate…

  • Where Do Stars Go?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about stars. The probe is designed to examine students’ ideas about the location of stars in the daytime.

  • Iron Bar

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about atoms. The probe is specifically designed to determine whether students can use the idea of atoms to explain why a metal expands when heated.…

  • Emmy’s Moon and Stars

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the relative position of common objects seen in the night sky. The probe is designed to find out if students recognize how far away the stars are…

  • How Are Science and Engineering Similar?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the ways in which science and engineering are similar. The probe is designed to reveal whether students understand that science and engineering…

  • Warming Water

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about thermal energy. The probe is designed to find out whether students think cold things can have energy.

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