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  • Boiling Time and Temperature

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the boiling point of a pure substance. The probe is designed to find out whether students recognize that the boiling point of a pure substance…

  • Freezing Ice

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about freezing point. The probe is designed to find out if students recognize that the temperature at which water freezes is independent of the volume.

  • Whale and Shrew

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about cell size. The probe is designed to reveal whether students think animal cell size is determined by the size of the animal.

  • 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…

  • 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…

  • Global Warming

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about global warming. The probe is designed to find out what students think contributes to global warming.

  • 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.

  • Mixing Water

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about temperature change in a system. The probe is designed to find out whether students recognize that heat moves from the warm water to the cool water…

  • Is It a Model?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about models. The probe is designed to find out whether students recognize that models can take a variety of forms besides physical replicas.

  • Giant Sequoia Tree

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the transformation of matter. The probe is designed to reveal whether students recognize that most of the matter that makes up the wood of a tree…

  • Talking About Forces

    Lesson Plan |

    The purpose of this assessment probe is to elicit beginning ideas about forces. The probe is designed to reveal whether students generally identify forces as pushes and pulls.

  • Does It Have to Touch?

    Lesson Plan |

    The purpose of this assessment probe is to elicit beginning ideas about types of forces. The probe is designed to reveal whether students recognize that forces can act both in direct contact with an object and at a…

  • 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…

  • Is the Sun a Star?

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the Sun and stars. The probe is designed to uncover students’ ideas about the nature of stars and their recognition that the Sun is an average star…

  • Grand Canyon

    Lesson Plan |

    The purpose of this assessment probe is to elicit students’ ideas about the formation of the Grand Canyon. The probe is designed to find out if students recognize the role of rivers and flowing water and connect them to…

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